Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, trinh va
cong tan » cong tac, cong san, cong thanh
song van » hoang van, trong van, duong van
than cau » toan cau, than cap, thanh chau
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: ho chieu tinh - canh tranh va nhung ((cong tan) or (song van)) ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - canh tranh va nhung ((cong tan) OR (song van)) ((than cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - canh tranh va nhung ((cong tan) or (song van)) ((than cau) or (phan cau))*.