Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
quang dung » quang trung, ung dung, cuong dung
hoc thieu » toc thieu, hoc hien
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dung cong » dung trong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (hoc thieu)) xanh - hanh tinh quang dung cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (hoc thieu)) xanh - hanh tinh quang dung cong tac toan ban*.