Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chi tach » chiu trach, chiet tach, chi thanh
tranh va » tranh van, trang va, trinh va
cong tan » cong tac, cong san, cong thanh
phan cac » nhan cach, phan lap, phan van
phan dau » phan tu, hang dau
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi tach - canh tranh va nhung cong tan ((phan cac) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi tach - canh tranh va nhung cong tan ((phan cac) OR (phan dau)).
• Adding a wildcard symbol may retrieve word variants: doi chi tach - canh tranh va nhung cong tan ((phan cac) or (phan dau))*.