Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
lieu tinh » diep tinh, bien tinh
trung va » truong va, trung ha, trung tam
trang va » tran van, hang va
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((trieu tinh) or (lieu tinh)) - thanh ((trung va) or (trang va)) nhung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((trieu tinh) OR (lieu tinh)) - thanh ((trung va) OR (trang va)) nhung cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: ho ((trieu tinh) or (lieu tinh)) - thanh ((trung va) or (trang va)) nhung cong tac toan cao*.