Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh minh » thanh minh, hinh minh, hanh tinh
cong tac » cong ty
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
minh va » tinh va, sinh va, sinh vat

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

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