Perhaps you should try some spelling variations:
thanh tang » thanh thang, thanh trang, thanh tung
van trong » van truong, vang trong, ban trong
cot lieu » co lieu, vat lieu, cu lieu
tang van » dang van, hoang van, trong van
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
so lieu » so dieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so lieu) or (cot lieu)) tinh - thanh tang van trong cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so lieu) OR (cot lieu)) tinh - thanh tang van trong cong tan toan cao*.