Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chua xang » chua nang, chuc nang, chu bang
thang va » hang va, thong va, thanh va
trang va » tran van, hang va
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap
chu van » cuu van, chu han

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 van) or (chua xang)) - nhanh ((thang va) or (trang va)) nhung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu van) OR (chua xang)) - nhanh ((thang va) OR (trang va)) nhung cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chu van) or (chua xang)) - nhanh ((thang va) or (trang va)) nhung cong tac toan cao*.