Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
goc nganh » hoc nganh, hoc nhanh, moi nganh
cac nganh » hoc nganh
chung hoc » trung hoc, dung hoc, hung hoa
thu sach » tu sach, thuat sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
phan dan » phan dang, phan dau, nhan dan
huu mot » cuu mot, huy mot, hieu mot
va phan » van phan, va phat, va phap
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: thu sach hoc tap, nghien huu mot ((goc nganh) OR (cac nganh)) chung hoc xa hoi va phan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach hoc tap, nghien huu mot ((goc nganh) OR (cac nganh)) chung hoc xa hoi va phan dan".
• Adding a wildcard symbol may retrieve word variants: thu sach hoc tap, nghien huu mot ((goc nganh) OR (cac nganh)) chung hoc xa hoi va phan dan*.