Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
trong thai » trong thi, trong thuat, trong nha
trong thoi » trong thi, trong tho, trong trot
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai 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: ho chieu sang - anh ((trong thai) or (trong thoi)) dung cong tap toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - anh ((trong thai) OR (trong thoi)) dung cong tap toan ban.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - anh ((trong thai) or (trong thoi)) dung cong tap toan ban*.