Perhaps you should try some spelling variations:
tranh hang » tran hoang, tran hong
doi chieu » doc hieu, doi chi, mot chieu
tranh cua » doanh cua, manh cua
bang cong » dang cong, bang song, hang cong
trinh han » trinh quan
ho chieu » theo chieu, hoc thieu, mot chieu
cua bang » chua bang, cua ban, cua dang
cong san » cong tac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) xanh - canh tranh cua bang cong san ((tranh hang) OR (trinh han))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) xanh - canh tranh cua bang cong san ((tranh hang) or (trinh han))~".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) xanh - canh tranh cua bang cong san ((tranh hang) or (trinh han))*.