Perhaps you should try some spelling variations:
trinh nghien » trinh nghe, kinh nghiem, trinh thiet
quan thanh » ban thanh, van thanh
xuan thanh » quang thanh, ban thanh, van thanh
cho nguoi » cua nguoi
vien duan » vien quan, tien duan, vien luan
hoi vien » hoc vien, hoi viet, thoi hien
nam hoi » nam khoa

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 nghien ((quan thanh) or (xuan thanh)) cho nguoi viet nam hoi vien duan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giao trinh nghien ((quan thanh) OR (xuan thanh)) cho nguoi viet nam hoi vien duan.
• Adding a wildcard symbol may retrieve word variants: giao trinh nghien ((quan thanh) or (xuan thanh)) cho nguoi viet nam hoi vien duan*.