Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
va phuong » va thuong, cac phuong
cong sang » cong lang, cong vang, cong bang
tranh va » tranh van, trang va, trinh va
cong san » cong tac
toan tap » toan ban

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 - canh tranh va phuong ((cong san) or (cong sang)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - canh tranh va phuong ((cong san) OR (cong sang)) toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - canh tranh va phuong ((cong san) or (cong sang)) toan tap*.