Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
nhieu tang » chieu sang, nhiet nang
chong cong » cong cong, thong cong, cuong cong
hieu lang » chieu sang, hieu quang, hieu van
doanh hua » doanh cua, doanh ha, doanh khoa
hua chong » hua khong, ngua chong, qua chuong
cong san » cong tac
toan tap » toan ban
nhan tai » hang tai, van tai, toan tai

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