Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh dang » hanh dong, anh dang, hanh dung
dung cong » dung trong
manh toan » thanh toan, anh tuan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
dang van » hoang van, hang va
van dung » van dong, xay dung, tin dung
tac toan » tap toan, tam toan, hach toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - hanh dang van dung cong ((tac toan) or (manh toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh dang van dung cong ((tac toan) OR (manh toan)) ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh dang van dung cong ((tac toan) or (manh toan)) ban*.