Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trung » thanh trung, hanh trang, manh trung
chau tinh » cuu tinh, ha tinh, cua tinh
dung cong » dung trong
trung ha » trung hoc, trung tam, trung cap
cong tac » cong ty
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
ha dung » hai dung, kha dung, nha dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chau tinh) or (chieu xanh)) - hanh trung ha dung cong tac ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chau tinh) OR (chieu xanh)) - hanh trung ha dung cong tac ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((chau tinh) or (chieu xanh)) - hanh trung ha dung cong tac ((toan cau) or (toan ban))*.