Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
khong hoc » thong hoc, khong thuoc, khong chuc
khung hoc » chung hoc, nhung hoc, thuong hoc
sach hoc » cach hoc, sach hoi, mach hoc
nhan dan » phan dau, gian dan, nhan tai
te sach » toc sach
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
va nhan » van nhan, ca nhan, va phan
ma hoi » mai hoi, xa hoi, ma hoa

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 hoc tap, nghien cuu mot hoc nganh ((khong hoc) or (khung hoc)) ma hoi va nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoc tap, nghien cuu mot hoc nganh ((khong hoc) OR (khung hoc)) ma hoi va nhan dan.
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu mot hoc nganh ((khong hoc) or (khung hoc)) ma hoi va nhan dan*.