Perhaps you should try some spelling variations:
thanh trung » thanh tung
thi chieu » thi chien, thi hieu, theo chieu
van thang » van thanh, van khang, van hang
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
tac hang » tac vang, bac thang, tac chong
va nang » van nang, da nang, cam nang

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) or (thi chieu)) xanh - thanh trung ((van thang) or (va nang)) cong tac hang va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (thi chieu)) xanh - thanh trung ((van thang) OR (va nang)) cong tac hang va.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (thi chieu)) xanh - thanh trung ((van thang) or (va nang)) cong tac hang va*.