Perhaps you should try some spelling variations:
hanh dung » thanh dung, anh dung, hanh dong
luan bang » luan ban, luan tang, tuan bang
luan nang » luan van, van nang, luan san
cong danh » cuong danh, cong dan, cong thanh
theo chu » theo chieu, cho chu, chao chu
chu manh » ho manh, chu han, chu van
tuan cao » toan cao, juan cao, quang cao

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: theo chu manh - hanh dung ((luan bang) OR (luan nang)) cong danh ((tuan cao) OR (nang cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu manh - hanh dung ((luan bang) OR (luan nang)) cong danh ((tuan cao) or (nang cao))~".
• Adding a wildcard symbol may retrieve word variants: theo chu manh - hanh dung ((luan bang) OR (luan nang)) cong danh ((tuan cao) or (nang cao))*.