Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, hieu van
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, cua tong
thanh lap » thanh san, phan lap, thanh hai
tang cua » mang cua, hang cua, tang luan
cong tac » cong ty
than cap » khan cap, thanh cac, than cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((nhieu tang) OR (hieu lang)) - hanh tang cua thong cong tac ((than cap) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((nhieu tang) OR (hieu lang)) - hanh tang cua thong cong tac ((than cap) OR (thanh lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((nhieu tang) OR (hieu lang)) - hanh tang cua thong cong tac ((than cap) or (thanh lap))".
• Adding a wildcard symbol may retrieve word variants: theo ((nhieu tang) OR (hieu lang)) - hanh tang cua thong cong tac ((than cap) or (thanh lap))*.