Perhaps you should try some spelling variations:
trinh thiet » trinh viet, trinh thi
thiet luan » thien luan, thi luan, thien quan
nguoi vien » nguoi viet, nguoi tien, nguoi chien
vien khoa » von khoa, lieu khoa, van khoa
dien phan » dien thanh, bien phap, hien phap
vien than » vien thanh, dien than, vien nhan
luan san » luan van, luan hoan, luan phan
khoa hoc » hoa hoc
dien dan » hien dai, vien dai, gian dan
san cua » sang cua, ban cua, dan cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: giao trinh thiet luan san cua nguoi vien khoa hoc ((((dien phan) or (dien dan))) or (vien than))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giao trinh thiet luan san cua nguoi vien khoa hoc ((((dien phan) OR (dien dan))) OR (vien than)).
• Adding a wildcard symbol may retrieve word variants: giao trinh thiet luan san cua nguoi vien khoa hoc ((((dien phan) or (dien dan))) or (vien than))*.