Perhaps you should try some spelling variations:
thanh chuong » thanh huong, thanh cong, nhanh chong
chieu sang » chieu sach, chieu xanh, hieu lang
chau tinh » cuu tinh, ha tinh, cua tinh
cua dang » cua ban
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) OR (chau tinh)) - thanh chuong ((cua dang) OR (cua cong)) cong tap toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (chau tinh)) - thanh chuong ((cua dang) OR (cua cong)) cong tap toan ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (chau tinh)) - thanh chuong ((cua dang) OR (cua cong)) cong tap toan ban*.