Perhaps you should try some spelling variations:
trinh quang » tinh quang, trinh quan, tranh quang
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
quang dung » quang trung, ung dung, cuong dung
tranh luan » trinh luan, trinh luat, doanh luan
hoc thieu » toc thieu, hoc hien
trong tan » trong quan, trong cac, trong ca
tran van » luan 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 thieu xanh - hanh trinh quang dung trong tan ((tran van) or (tranh luan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh quang dung trong tan ((tran van) OR (tranh luan))*.