Perhaps you should try some spelling variations:
phong cong » phong chong, thong cong, chong cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh dong » anh dong, ha dong
dong hai » dong ha, dong tai, cong hai
cong tan » cong tac, cong san, cong thanh
toan cao » toan tap
toan ban » van 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 - hanh dong hai phong cong tan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh dong hai phong cong tan ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh dong hai phong cong tan ((toan cao) or (toan ban))*.