Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong tac » cong ty
tac tran » tan tran, tac trai, tac tren
tran tan » tran tuan, tran van, tran thanh
tung va » trung va, tuong va, dung va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((((chieu sach) or (hieu manh))) or (chinh sach)) - thanh tung va nhung cong tac tran tan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu sach) OR (hieu manh))) OR (chinh sach)) - thanh tung va nhung cong tac tran tan.
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu sach) or (hieu manh))) or (chinh sach)) - thanh tung va nhung cong tac tran tan*.