Perhaps you should try some spelling variations:
nhieu tang » nhiet nang
chieu sang » chieu sach, chieu xanh
hieu lang » hieu quang, hieu van, biet lang
hanh hang » thanh hang, hang hang, hanh han
he trong » he thong, he trung, le trong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban
hang he » hang ha, bang he, hang ke

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((hieu lang) OR (nhieu tang))) OR (chieu sang)) - hanh hang he trong cong san toan ban~.
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu lang) or (nhieu tang))) or (chieu sang)) - hanh hang he trong cong san toan ban*.