Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
doc vien » hoc vien, doc tieng, duoc viet
doc viet » duoc viet, hoc viet, toc viet
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
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: ((doc vien) or (doc viet)) nganh - canh tranh cua nhung cong tan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc vien) OR (doc viet)) nganh - canh tranh cua nhung cong tan phan dau.
• Adding a wildcard symbol may retrieve word variants: ((doc vien) or (doc viet)) nganh - canh tranh cua nhung cong tan phan dau*.