Perhaps you should try some spelling variations:
hang cong » dang cong, hang nong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, trinh va
cong tan » cong tac, cong san, cong thanh
tan chan » dan chan, ban chan, can chan
va hang » van hang, va nang, va lang
chan tu » phan tu, han tu, chon tu

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 (hoc hien)) xanh - canh tranh va hang cong tan chan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc hien)) xanh - canh tranh va hang cong tan chan tu.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc hien)) xanh - canh tranh va hang cong tan chan tu*.