Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
truong va » truong dai, truong cao, truong dao
trang va » tran van, hang va
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - thanh ((truong va) or (trang va)) nhung cong san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - thanh ((truong va) OR (trang va)) nhung cong san toan tap.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - thanh ((truong va) or (trang va)) nhung cong san toan tap*.