Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
manh quang » minh quang, anh quang, manh quan
quang dung » quang trung, ung dung, cuong dung
trong anh » truong anh, trong nganh, trong doanh
lan manh » lanh manh, lan anh, van manh
anh van » anh va, thanh van, doanh van

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 sach)) - lan manh quang dung trong anh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sach)) - lan manh quang dung trong anh van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sach)) - lan manh quang dung trong anh van ban*.