Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
tranh cua » manh cua
doanh cua » doanh luan
bang cong » dang cong, bang song, hang cong
ho chieu » theo chieu, hoc thieu, mot chieu
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan dau » phan tu, hang dau

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 (doi chieu)) xanh - canh ((tranh cua) or (doanh cua)) bang cong tac phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) xanh - canh ((tranh cua) OR (doanh cua)) bang cong tac phan dau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) xanh - canh ((tranh cua) or (doanh cua)) bang cong tac phan dau*.