Perhaps you should try some spelling variations:
goc nganh » hoc nganh, hoc nhanh, moi nganh
cac nganh » hoc nganh
sach hoi » sach doi, sach moi, cach thoi
khoa hoc » hoa hoc
nhan dan » phan dau, gian dan, nhan tai
te sach » toc sach
hoi tap » hoi dap, hoc tap, hoi tai
cuu mot » cua mot, cuu mo, huu mot
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.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach hoi tap, nghien cuu mot ((goc nganh) OR (cac nganh)) khoa hoc xa hoi va nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach hoi tap, nghien cuu mot ((goc nganh) OR (cac nganh)) khoa hoc xa hoi va nhan dan".
• Adding a wildcard symbol may retrieve word variants: te sach hoi tap, nghien cuu mot ((goc nganh) OR (cac nganh)) khoa hoc xa hoi va nhan dan*.