Perhaps you should try some spelling variations:
xvii housing » ii housing, iii housing, fair housing
costs land » cost land, costly land, costs canada
ping wang » ping pong, hong wang
costs aid » costs a, costs amy, costs ii
hong hong » hong kong, hong jong, hong ng
hong a » hong ma, hong w, kong a

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: ping wang yanling xvii housing ((costs aid) OR (costs land)) ((hong a) OR (hong hong)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ping wang yanling xvii housing ((costs aid) OR (costs land)) ((hong a) or (hong hong)) ;~".
• Adding a wildcard symbol may retrieve word variants: ping wang yanling xvii housing ((costs aid) OR (costs land)) ((hong a) or (hong hong)) ;*.