Perhaps you should try some spelling variations:
cong thanh » cong trinh, cong tan, truong thanh
dong thanh » truong thanh
hanh dung » thanh dung, anh dung, hanh dong
luan hang » luan nang, luan han, luan hung
chu xanh » chieu xanh, chua xang, chuc danh
chu manh » ho manh, chu han, chu van
tra cao » tra bao, tra cau, tra cho

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao ((chu xanh) OR (chu manh)) - hanh dung luan hang ((cong thanh) or (dong thanh)) tra cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chu xanh) OR (chu manh)) - hanh dung luan hang ((cong thanh) OR (dong thanh)) tra cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao ((chu xanh) OR (chu manh)) - hanh dung luan hang ((cong thanh) or (dong thanh)) tra cao".
• Adding a wildcard symbol may retrieve word variants: chao ((chu xanh) OR (chu manh)) - hanh dung luan hang ((cong thanh) or (dong thanh)) tra cao*.