Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
chieu sang » chieu sach, chieu xanh, hieu lang
chong quan » thong quan, cuong quan, hong quan
toc chieu » toc thieu, doc hieu, hoc thieu
dung cong » dung trong
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: toc chieu sang - nhanh chong quan ((dung cong) or (dang cong)) tap toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu sang - nhanh chong quan ((dung cong) OR (dang cong)) tap toan ban.
• Adding a wildcard symbol may retrieve word variants: toc chieu sang - nhanh chong quan ((dung cong) or (dang cong)) tap toan ban*.