Perhaps you should try some spelling variations:
nhanh nhung » hanh nhung, nhanh hung, nhanh chuong
nhung goc » nhung cuoc, nhung gi, nhung bo
sach hoc » cach hoc, sach hoi, mach hoc
nhan dan » phan dau, gian dan, nhan tai
so sach » so sanh, bo sach, co sach
mon hoc » toan hoc, dong hoc
va nhan » van nhan, ca nhan, va phan
mo hoc » co hoc
goc xa » hoc xa, goc va, uoc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach hoc tap, nghien cuu ((mo hoc) or (mon hoc)) nhanh nhung goc xa hoi va nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach hoc tap, nghien cuu ((mo hoc) OR (mon hoc)) nhanh nhung goc xa hoi va nhan dan.
• Adding a wildcard symbol may retrieve word variants: so sach hoc tap, nghien cuu ((mo hoc) or (mon hoc)) nhanh nhung goc xa hoi va nhan dan*.