Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chu sang » chu bang, thu sang, chieu sang
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap
thu san » thuy san, thu ban, phu san
dang va » dang van, dang vat, dung va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu sang) or (thu san)) - cach ((dang va) or (hang va)) nhung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu sang) OR (thu san)) - cach ((dang va) OR (hang va)) nhung cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chu sang) or (thu san)) - cach ((dang va) or (hang va)) nhung cong tan toan cau*.