Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, hieu van
chuong co » chong co, huong co, chuong moi
chung co » chung cho, chung cu, chong co
cong san » cong tac
san toan » van toan, dan toan, manh toan
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: ho ((hieu lang) or (nhieu tang)) - thanh ((chuong co) or (chung co)) nhung cong san toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (nhieu tang)) - thanh ((chuong co) OR (chung co)) nhung cong san toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (nhieu tang)) - thanh ((chuong co) or (chung co)) nhung cong san toan cau*.