Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
nhung cong » dung cong, thong cong, hang cong
hanh cong » thanh cong, hang cong, hanh dong
ho chieu » hoc thieu, doi chieu, mot chieu
anh dong » anh huong, anh son
cong tan » cong tac, cong san, cong thanh
tan doan » tran doan, tap doan, van doan
doan cau » toan cau, doan dau, doan cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) OR (ho chieu)) sang - ((hanh cong) or (anh dong)) va nhung cong tan doan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sang - ((hanh cong) OR (anh dong)) va nhung cong tan doan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) sang - ((hanh cong) or (anh dong)) va nhung cong tan doan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) sang - ((hanh cong) or (anh dong)) va nhung cong tan doan cau*.