Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cua tong » cua cong, cua dong, cua nong
tong tap » tuong tac, trong tan, tong hop
cong tac » cong ty
doan cau » toan cau, doan dau, doan cap

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 cua tong ((tong tap) or (cong tac)) doan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - anh tang cua tong ((tong tap) OR (cong tac)) doan cau.
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - anh tang cua tong ((tong tap) or (cong tac)) doan cau*.