Perhaps you should try some spelling variations:
luan luong » luan phuong, tuan duong, van luong
luan cuong » luan cong, xuan cuong, luan tuong
hanh dung » thanh dung, anh dung, hanh dong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban
theo ho » theo hop, theo bo, tho ho
thao bo » tao bo, theo bo, thac bao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo ho) or (thao bo)) manh - hanh dung ((luan cuong) OR (luan luong)) cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo ho) OR (thao bo)) manh - hanh dung ((luan cuong) OR (luan luong)) cong tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo ho) or (thao bo)) manh - hanh dung ((luan cuong) OR (luan luong)) cong tan toan ban".
• Adding a wildcard symbol may retrieve word variants: ((theo ho) or (thao bo)) manh - hanh dung ((luan cuong) OR (luan luong)) cong tan toan ban*.