Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
sanh hoc » sinh hoc, anh hoc, danh hoc
khoa hoc » hoa hoc
nhan tai » hang tai, van tai, toan tai
so sanh » do sanh
van loc » van hoc, van ngoc
va nhan » van nhan, ca nhan, va phan
hoc xa » hoc ma

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh hoc tap, nghien cuu ((van loc) OR (van loi)) nganh khoa hoc xa hoi va nhan tai~".
• Adding a wildcard symbol may retrieve word variants: so sanh hoc tap, nghien cuu ((van loc) OR (van loi)) nganh khoa hoc xa hoi va nhan tai*.