Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
cong thanh » dong thanh, cong trinh, cong tan
mot chieu » doi chieu, ho chieu
dung cong » dung trong
anh tang » anh bang, anh dang, anh nang
tang ung » tong ung, dang ung, tang cuong
van cau » van dau, van hau, van chat
ban cau » bang cau, ban can, ban dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (theo chieu)) xanh - anh tang ung dung cong thanh ((van cau) or (ban cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chieu)) xanh - anh tang ung dung cong thanh ((van cau) OR (ban cau)).
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo chieu)) xanh - anh tang ung dung cong thanh ((van cau) or (ban cau))*.