Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trong » hanh trang, anh trong, hinh trong
quang dung » quang trung, ung dung, cuong dung
hoc chieu » hoc thieu, ho chieu, hoc hien
quan dung » quan duong, qua dung, quan dong
trong san » trong cac, cong san, dong san
san van » tan van, luan van, tran 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 - hanh trong ((quan dung) or (quang dung)) trong san van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh trong ((quan dung) OR (quang dung)) trong san van ban.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh trong ((quan dung) or (quang dung)) trong san van ban*.