Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
chan cau » can cau, chinh cau, nhanh cau
phan cau » phan dau, phan cac, phan tu

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)) tinh - canh tranh va nhung cong dan ((chan cau) OR (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (theo chieu)) tinh - canh tranh va nhung cong dan ((chan cau) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (theo chieu)) tinh - canh tranh va nhung cong dan ((chan cau) OR (phan cau))".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (theo chieu)) tinh - canh tranh va nhung cong dan ((chan cau) OR (phan cau))*.