Perhaps you should try some spelling variations:
hanh hang » thanh hang, hang hang, hanh han
va phuong » va thuong, cac phuong
chu xanh » chu manh, chieu xanh, chua xang
va thong » va thuong, he thong, va cong
cong dan » cong san, cong tan, huong dan
cong tac » cong ty
toan cao » toan ban, toan tap
cho chu » cho thue

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

• If you are trying to use Boolean operators, they must be ALL CAPS: cho chu xanh - hanh hang ((va thong) OR (va phuong)) ((cong dan) OR (cong tac)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cho chu xanh - hanh hang ((va thong) OR (va phuong)) ((cong dan) or (cong tac)) toan cao~".
• Adding a wildcard symbol may retrieve word variants: cho chu xanh - hanh hang ((va thong) OR (va phuong)) ((cong dan) or (cong tac)) toan cao*.