Perhaps you should try some spelling variations:
trinh nhiet » trinh thiet, trinh nghien, trinh viet
nhiet cua » nghiep cua, nhat cua, hieu cua
cho nguoi » cua nguoi
vien duan » vien quan, vien luan, vien dai
tien duan » tien dua, tien huan, tien quang
cua danh » cua doanh, cua dang, cua dan
nm hoc » am hoc, n3 hoc
n1 hoc » n1 doc, n3 hoc

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 nhiet cua danh cho nguoi viet ((nm hoc) or (n1 hoc)) ((vien duan) or (tien duan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giao trinh nhiet cua danh cho nguoi viet ((nm hoc) OR (n1 hoc)) ((vien duan) OR (tien duan)).
• Adding a wildcard symbol may retrieve word variants: giao trinh nhiet cua danh cho nguoi viet ((nm hoc) or (n1 hoc)) ((vien duan) or (tien duan))*.