Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
hang doanh » hanh doanh, nhung doanh, van doanh
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
cua khong » hua khong, cua phuong, cua thuong
san phan » san pham, van phan, dan phan
sat phan » sat nhan, vat phan, xuat phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo hieu lang - ((kinh doanh) or (hang doanh)) cua khong cong ((san phan) OR (sat phan)) thi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - ((kinh doanh) OR (hang doanh)) cua khong cong ((san phan) OR (sat phan)) thi*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hieu lang - ((kinh doanh) or (hang doanh)) cua khong cong ((san phan) OR (sat phan)) thi*".