Perhaps you should try some spelling variations:
thanh quang » nhanh quang, thanh quan, than quang
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
quang tuan » quang thanh, quan luan, quang cua
khong cang » thong cong, khong dung, thong cung
thanh toan » thanh hoa, thanh san, tinh toan
hong bang » dong bang, hang ban, hong hanh
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: hoc ((chieu xanh) or (chieu sang)) - thanh quang tuan ((khong cang) OR (hong bang)) thanh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - thanh quang tuan ((khong cang) OR (hong bang)) thanh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (chieu sang)) - thanh quang tuan ((khong cang) OR (hong bang)) thanh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sang)) - thanh quang tuan ((khong cang) OR (hong bang)) thanh toan ban*.