Perhaps you should try some spelling variations:
thanh cuong » thanh chuong, thanh cong, thanh huong
thanh tung » thanh cong
hieu xanh » chieu xanh, hieu manh, hieu nganh
cuong van » duong van, luong van, muong van
lluan van » luan va, luan von, quan van
doc hieu » toc thieu, hoc thieu, hoc hien
tung gia » tuong giai, dung giao, luong gia

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - thanh tung gia thanh cuong van ((luan van) or (lluan van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh tung gia thanh cuong van ((luan van) OR (lluan van)).
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh tung gia thanh cuong van ((luan van) or (lluan van))*.