Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh danh » hanh doanh, han danh, anh danh
dung cong » dung trong
danh qua » hanh qua, doanh quan, manh quan
qua dung » quang dung, su dung, qua song
ty toan » tap toan, huy toan, tam toan
ly toan » le toan, ly hoan, ly tran

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 danh qua dung cong ((ty toan) or (ly toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh danh qua dung cong ((ty toan) OR (ly toan)) cao*.