Perhaps you should try some spelling variations:
land planning » based planning, road planning
dam planning » term planning, from planning, 2 planning
china tan » china top, china two, china taiwan
yang mind » yang cindy, yang jin, sang minh
mind hong » min hong, mind how, amin hong
tan yang » dan yang, tan ying, tan yong

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((land planning) OR (dam planning)) can china tan yang mind hong tan ;~".
• Adding a wildcard symbol may retrieve word variants: ((land planning) OR (dam planning)) can china tan yang mind hong tan ;*.