Hi,
You can use
criteria field to get the placement data via
Placement Performance report. Please refer to reporting basic
guide. You can refer to sample Java
code to download the report. Samples in other languages can be found
here. If you are facing any problem, then please share the
report definition so that I can assist you further. You can chose 'Reply privately to author' option while responding.
Thanks,
Milind, AdWords API Team