Perhaps you should try some spelling variations:
land planning » based planning, road planning, dam planning
planning can » planning chain, planning case, planning land
china's top » china's tour, china's gdp, china's low
china tan » china top, china two, china taiwan
yang minh » sang minh, yang mind, kang minah
minh hong » minh cong, min hong, linh hoang

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 can ((china tan) OR (china's top)) yang minh hong tan ;~.
• Adding a wildcard symbol may retrieve word variants: land planning can ((china tan) or (china's top)) yang minh hong tan ;*.