Perhaps you should try some spelling variations:
doanh chung » doanh nhung, doanh thuong, doan hung
tran doanh » toan doanh, trai doanh, tran danh
chieu tinh » trieu tinh, lieu tinh, chau tinh
chung cong » nhung cong, chong cong, phung cong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh tran » hanh trang, thanh tran, hanh tram
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan van

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) or (hieu lang)) - hanh tran doanh chung cong tan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (hieu lang)) - hanh tran doanh chung cong tan van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (hieu lang)) - hanh tran doanh chung cong tan van ban*.