Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
thanh toan » thanh hoa, thanh san, tinh toan
hieu lang » chieu sang, hieu quang, hieu van
thanh son » thanh san, thanh cong, thanh hoa
dung cong » dung trong
vat dung » van dung, va dung, viet dung
tam toan » tap toan, tam than, pham toan
son vat » so vat, son va, son van

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

• Performing a fuzzy search may retrieve terms with similar spellings: thien ((hieu lang) or (nhieu tang)) - thanh son vat dung cong ((tam toan) or (thanh toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thien ((hieu lang) OR (nhieu tang)) - thanh son vat dung cong ((tam toan) OR (thanh toan)) ban.
• Adding a wildcard symbol may retrieve word variants: thien ((hieu lang) or (nhieu tang)) - thanh son vat dung cong ((tam toan) or (thanh toan)) ban*.