Perhaps you should try some spelling variations:
land planning » based planning, road planning, dam planning
planning can » planning chain, planning case, planning land
tong song » song seng, tong king
hong song » hong kong, hong jong, hong hong
amin hong » among hong, tin hong, asia hong
min hong » tin hong, min hyoung, min jeong

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