Perhaps you should try some spelling variations:
thi chieu » thi chien, thi hieu, theo chieu
luan cong » luat cong, luong cong, luan chung
cong cong » cong dong, trong cong, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
anh dong » anh huong, anh son
cong tac » cong ty
tac khan » tac nhan, cac khoan, tac chuan
khan cap » khan ap, than cap, khoan cam

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 - ((canh tranh) or (anh dong)) luan cong cong tac khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (thi chieu)) xanh - ((canh tranh) OR (anh dong)) luan cong cong tac khan cap.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (thi chieu)) xanh - ((canh tranh) or (anh dong)) luan cong cong tac khan cap*.