Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
dung cong » dung trong
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, dung cua, ban cua
cong tac » cong ty
tran cau » tran chau, ran cau, tra cau
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 - hanh ((tang cua) or (mang cua)) dung cong tac ((tran cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hanh ((tang cua) OR (mang cua)) dung cong tac ((tran cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh ((tang cua) or (mang cua)) dung cong tac ((tran cau) or (toan cau))*.