Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tieu xanh » tieu danh, chieu xanh, dieu hanh
tang van » dang van, hoang van, trong van
trang va » tran van, hang va
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan cau » 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: theo tieu xanh - anh ((tang van) or (trang va)) thong cong van toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - anh ((tang van) OR (trang va)) thong cong van toan cau*.