Perhaps you should try some spelling variations:
nganh nhung » doanh nhung, nganh nong, anh nhung
hoc nganh » hoc nhanh
nhung hoc » chung hoc, nhung goc, khung hoc
sach hoc » cach hoc, sach hoi, mach hoc
cuu tuan » huu tuan, chu tuan, cuu toan
tuan hoc » toan hoc, luan hoc, than hoc
phan dau » phan tu, hang dau
gian dan » gian lang
su sach » so sach, vu sach
ma khoi » mai khoi, ra khoi, xa khoi
khoi va » hoi va, khi va, choi va

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoc tap, nghien cuu tuan hoc nganh nhung hoc ma khoi va ((phan dau) OR (gian dan))~.
• Adding a wildcard symbol may retrieve word variants: su sach hoc tap, nghien cuu tuan hoc nganh nhung hoc ma khoi va ((phan dau) or (gian dan))*.