Perhaps you should try some spelling variations:
thanh trung » thanh tung
thanh dung » thanh duong, thanh tung, thanh dong
thanh hung » thanh huong, thanh tung, thanh cong
hien manh » hien hanh, tien manh, hieu manh
hanh dung » anh dung, hanh dong, manh dung
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien manh - thanh trung ((((thanh dung) OR (hanh dung))) or (thanh hung)) cong tan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien manh - thanh trung ((((thanh dung) OR (hanh dung))) OR (thanh hung)) cong tan phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien manh - thanh trung ((((thanh dung) OR (hanh dung))) or (thanh hung)) cong tan phan tu".
• Adding a wildcard symbol may retrieve word variants: hoc hien manh - thanh trung ((((thanh dung) OR (hanh dung))) or (thanh hung)) cong tan phan tu*.