Here's example request and response without the 2 fields resulting in 9 matches, with non-empty strings replaced with SNIP.
If request included either of those 2 fields (ExpandedTextAdHeadlinePart3 and ExpandedTextAdDescription2), totalNumEntries = 0.
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope
<SOAP-ENV:Header>
<tns:RequestHeader>
<tns:clientCustomerId>1272584368</tns:clientCustomerId>
<tns:developerToken>REDACTED</tns:developerToken>
<tns:userAgent>Balihoo_Fulfillment (AwApi-Python, googleads/14.1.0, Python/3.6.1, suds)</tns:userAgent>
<tns:validateOnly>false</tns:validateOnly>
<tns:partialFailure>false</tns:partialFailure>
</tns:RequestHeader>
</SOAP-ENV:Header>
<ns1:Body>
<ns0:get>
<ns0:serviceSelector>
<ns0:fields>Id</ns0:fields>
<ns0:fields>Status</ns0:fields>
<ns0:fields>HeadlinePart1</ns0:fields>
<ns0:fields>HeadlinePart2</ns0:fields>
<ns0:fields>ExpandedTextAdHeadlinePart3</ns0:fields>
<ns0:fields>Description</ns0:fields>
<ns0:fields>ExpandedTextAdDescription2</ns0:fields>
<ns0:fields>Path1</ns0:fields>
<ns0:fields>Path2</ns0:fields>
<ns0:fields>CreativeFinalUrls</ns0:fields>
<ns0:fields>CreativeFinalMobileUrls</ns0:fields>
<ns0:fields>CreativeTrackingUrlTemplate</ns0:fields>
<ns0:predicates>
<ns0:field>AdGroupId</ns0:field>
<ns0:operator>EQUALS</ns0:operator>
<ns0:values>53379932101</ns0:values>
</ns0:predicates>
<ns0:predicates>
<ns0:field>HeadlinePart1</ns0:field>
<ns0:operator>EQUALS</ns0:operator>
<ns0:values>SNIP</ns0:values>
</ns0:predicates>
<ns0:predicates>
<ns0:field>HeadlinePart2</ns0:field>
<ns0:operator>EQUALS</ns0:operator>
<ns0:values>SNIP</ns0:values>
</ns0:predicates>
<ns0:predicates>
<ns0:field>Description</ns0:field>
<ns0:operator>EQUALS</ns0:operator>
<ns0:values>SNIP</ns0:values>
</ns0:predicates>
<ns0:predicates>
<ns0:field>CreativeFinalUrls</ns0:field>
<ns0:operator>EQUALS</ns0:operator>
</ns0:predicates>
<ns0:predicates>
<ns0:field>Status</ns0:field>
<ns0:operator>NOT_EQUALS</ns0:operator>
<ns0:values>DISABLED</ns0:values>
</ns0:predicates>
<ns0:paging>
<ns0:startIndex>0</ns0:startIndex>
<ns0:numberResults>100</ns0:numberResults>
</ns0:paging>
</ns0:serviceSelector>
</ns0:get>
</ns1:Body>
</SOAP-ENV:Envelope>
<soap:Envelope
<soap:Header>
<ResponseHeader
<requestId>00057f994c607fd40a3794c22906c4e8</requestId>
<serviceName>AdGroupAdService</serviceName>
<methodName>get</methodName>
<operations>1</operations>
<responseTime>316</responseTime>
</ResponseHeader>
</soap:Header>
<soap:Body>
<getResponse
<rval>
<totalNumEntries>9</totalNumEntries>
<Page.Type>AdGroupAdPage</Page.Type>
<entries>
<adGroupId>53379932101</adGroupId>
<ad
<id>313710273249</id>
<type>EXPANDED_TEXT_AD</type>
<Ad.Type>ExpandedTextAd</Ad.Type>
<headlinePart1>SNIP</headlinePart1>
<headlinePart2>SNIP</headlinePart2>
<description>SNIP</description>
</ad>
<status>PAUSED</status>
</entries>
......
<entries>
<adGroupId>53379932101</adGroupId>
<ad
<id>325653255052</id>
<type>EXPANDED_TEXT_AD</type>
<Ad.Type>ExpandedTextAd</Ad.Type>
<headlinePart1>SNIP</headlinePart1>
<headlinePart2>SNIP</headlinePart2>
<description>SNIP</description>
</ad>
<status>ENABLED</status>
</entries>
</rval>
</getResponse>
</soap:Body>
</soap:Envelope>