Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung tang » nhung lang, nhung bang, nhung cang
hoc thieu » toc thieu, hoc hien
tang luan » dung luan
thi hieu » thi chieu, thi hien, thi dieu
doc hieu » toc thieu, hoc hien
tung va » trung va, tuong va, dung va

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) or (((thi hieu) or (doc hieu)))) xanh - thanh tung va nhung tang luan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (((thi hieu) OR (doc hieu)))) xanh - thanh tung va nhung tang luan van ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (((thi hieu) or (doc hieu)))) xanh - thanh tung va nhung tang luan van ban*.