Perhaps you should try some spelling variations:
vien nganh » vien thanh
trinh viet » ninh viet, trinh vat
van nguoi » va nguoi, ban nguoi, ran nguoi
viet qua » vien quan, ket qua, viet ha
qua dinh » qua kinh, quy dinh, qua danh
ha hoc » hoa hoc, nha hoc, ha hoa
va hoc » van 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 viet qua dinh van nguoi viet ((ha hoc) or (va hoc)) vien nganh~.
• If you are trying to use Boolean operators, they must be ALL CAPS: giao trinh viet qua dinh van nguoi viet ((ha hoc) OR (va hoc)) vien nganh.
• Adding a wildcard symbol may retrieve word variants: giao trinh viet qua dinh van nguoi viet ((ha hoc) or (va hoc)) vien nganh*.