Perhaps you should try some spelling variations:
nganh chung » nhanh chuong, nganh cong, nhanh chong
nghien cua » nghien cuu, nghiep cua, nghiep vua
hoc nganh » hoc nhanh
thu sach » tu sach, thuat sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
phan dan » phan dang, phan dau, nhan dan
mot hoc » mon hoc, mo hoc, mot goc
va phan » van phan, va phat, va phap

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 cua mot hoc nganh chung ((hoc xa) OR (hoc ma)) hoi va phan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach hoc tap, nghien cua mot hoc nganh chung ((hoc xa) OR (hoc ma)) hoi va phan dan".
• Adding a wildcard symbol may retrieve word variants: thu sach hoc tap, nghien cua mot hoc nganh chung ((hoc xa) OR (hoc ma)) hoi va phan dan*.