Perhaps you should try some spelling variations:
land planning » based planning, road planning, dam planning
case china » care china, catte china, use china
china tang » china wang, china yang, china chang
linh hoang » anh hoang
tang tang » taizong tang
min hong » amin hong, tin hong, min hyoung
tang » thang
tan » than

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 case china tang tang ((linh hoang) OR (min hong)) tan ;~".
• Adding a wildcard symbol may retrieve word variants: land planning case china tang tang ((linh hoang) OR (min hong)) tan ;*.