Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
cong hoc » dong hoc, cong hoa, cong coc
khoa hoc » hoa hoc
van nhan » van phan, van thanh, danh nhan
nhan dan » phan dau, gian dan, nhan tai
su sach » vu sach
so sach » so sanh, bo sach, co sach
hoi van » hoi va, hoi dan, hai van
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (so sach)) hoc tap, nghien thu cong hoc nganh khoa hoc xa hoi van nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) hoc tap, nghien thu cong hoc nganh khoa hoc xa hoi van nhan dan.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) hoc tap, nghien thu cong hoc nganh khoa hoc xa hoi van nhan dan*.