Perhaps you should try some spelling variations:
based planning » basin planning, based learning
land planning » road planning, dam planning
chen yiqun » chen yun, shen yijun
king kong » hong kong
tin hong » tan hong, kia hong, thi hong
land d » land _, land a, land 2
d chen » _ chen, a chen, n chen

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) OR (based planning)) land d chen yiqun ((king kong) OR (tin hong)) su ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((land planning) OR (based planning)) land d chen yiqun ((king kong) or (tin hong)) su ;~".
• Adding a wildcard symbol may retrieve word variants: ((land planning) OR (based planning)) land d chen yiqun ((king kong) or (tin hong)) su ;*.