Perhaps you should try some spelling variations:
land planning » based planning, road planning, dam planning
planning can » planning chain, planning case, planning land
china tan » china two, china taiwan
china top » china's top, china tips, china two
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.

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