Perhaps you should try some spelling variations:
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
khoa hoc » hoa hoc
nhan dan » phan dau, gian dan, nhan tai
so sach » so sanh, co sach, hoc sach
bo sach » co sach, hoc sach
hoi tap » hoi dap, hoc tap, hoi tai
va nhan » van nhan, ca nhan, va phan
mo hoc » mon hoc, co hoc
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: ((so sach) OR (bo sach)) hoi tap, nghien cuu mo hoc nganh khoa hoc xa hoi va nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (bo sach)) hoi tap, nghien cuu mo hoc nganh khoa hoc xa hoi va nhan dan".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (bo sach)) hoi tap, nghien cuu mo hoc nganh khoa hoc xa hoi va nhan dan*.