Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
canh trinh » canh tranh, hanh trinh, canh tinh
doi chieu » doc hieu, doi chi, ho chieu
hang cong » dang cong, hang nong, bang cong
trinh va » trinh van, trinh vat, trinh ve
cong tac » cong ty
phat cau » phan cau, phap cau, phat am
va hang » van hang, va nang, va lang
pha cau » phan cau, phap cau, pha cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (theo chieu)) xanh - canh trinh va hang cong tac ((phat cau) or (pha cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (theo chieu)) xanh - canh trinh va hang cong tac ((phat cau) OR (pha cau)).
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (theo chieu)) xanh - canh trinh va hang cong tac ((phat cau) or (pha cau))*.