Perhaps you should try some spelling variations:
land planning » based planning, road planning, dam planning
planning und » planning under, planning unit, planning land
long trinh » long trip, long thanh
und china » 2nd china, funds china, did china
china tan » china top, china two, china taiwan
yang mind » yang cindy, yang jin, sang minh
hong than » hong tan, long thanh
tan yang » dan yang, tan ying, tan yong
hong hai » shang hai, zhong tai, dang hai

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: land planning und china tan yang mind ((((hong than) OR (hong hai))) OR (long trinh)) ;~.
• Adding a wildcard symbol may retrieve word variants: land planning und china tan yang mind ((((hong than) or (hong hai))) or (long trinh)) ;*.