Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
trong luan » truong luan, tong luan, trong quan
hanh tang » hanh trang, anh tang, hanh mang
hoc hieu » hoc thieu, hoc hien, doc hieu
tang cua » mang cua, hang cua, tang luan
cua dung » cua dang, cua dong, qua dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu nganh - hanh tang cua dung trong luan van ban~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu nganh - hanh tang cua dung trong luan van ban*.