Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
hieu lang » chieu sang, hieu quang, hieu van
cuong tap » luong tap, cong tac, luong tai
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua hang » cua dang, cua nhung, cua cong
cong tap » cong tac, cong tan, tong tap
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((nhieu tang) or (hieu lang)) - anh tang cua hang ((cong tap) OR (cuong tap)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((nhieu tang) OR (hieu lang)) - anh tang cua hang ((cong tap) OR (cuong tap)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((nhieu tang) or (hieu lang)) - anh tang cua hang ((cong tap) OR (cuong tap)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((nhieu tang) or (hieu lang)) - anh tang cua hang ((cong tap) OR (cuong tap)) toan cau*.