Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, hanh dung
thanh hung » thanh huong, thanh tung, thanh trung
thi chieu » thi chien, thi hieu, theo chieu
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than tap » toan tap, han tap, phan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thi chieu) or (theo chu)) xanh - ((thanh dung) OR (thanh hung)) cua dung cong tan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi chieu) OR (theo chu)) xanh - ((thanh dung) OR (thanh hung)) cua dung cong tan than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thi chieu) or (theo chu)) xanh - ((thanh dung) OR (thanh hung)) cua dung cong tan than tap".
• Adding a wildcard symbol may retrieve word variants: ((thi chieu) or (theo chu)) xanh - ((thanh dung) OR (thanh hung)) cua dung cong tan than tap*.