Perhaps you should try some spelling variations:
nhiet nang » nhiet dong, viet nang, nhieu tang
tang thanh » dang thanh, trung thanh, hoang thanh
thanh tung » thanh cong
hieu lang » chieu sang, hieu quang, nhieu tang
manh tang » manh thang, manh tung, anh tang
tung cong » dung cong, tong cong, truong cong
cong san » cong tac
toan cao » toan ban
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((nhiet nang) or (hieu lang)) - manh tang thanh tung cong san ((toan cao) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((nhiet nang) OR (hieu lang)) - manh tang thanh tung cong san ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((nhiet nang) or (hieu lang)) - manh tang thanh tung cong san ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ho ((nhiet nang) or (hieu lang)) - manh tang thanh tung cong san ((toan cao) OR (toan tap))*.