Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
hanh doanh » hang doanh, chinh doanh, doanh doanh
cua phuong » cuu phuong, cuc phuong, luan phuong
hieu lang » chieu sang, hieu quang, hieu van
cua khong » hua khong, cua thuong, cua cong
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan tap » phan lap, han tap, pha tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: thien ((hieu lang) OR (nhieu tang)) - hanh doanh ((cua khong) OR (cua phuong)) cong tac phan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thien ((hieu lang) OR (nhieu tang)) - hanh doanh ((cua khong) or (cua phuong)) cong tac phan tap~".
• Adding a wildcard symbol may retrieve word variants: thien ((hieu lang) OR (nhieu tang)) - hanh doanh ((cua khong) or (cua phuong)) cong tac phan tap*.