Perhaps you should try some spelling variations:
nhanh khong » nhanh chong, nganh khong, nhan khong
hoc nhanh » hoc nganh, hoc phan
khong hoc » khung hoc, thong hoc, khong thuoc
sach hoc » cach hoc, sach hoi, mach hoc
phap dan » phap day, phap han, phap van
so sach » so sanh, bo sach, co sach
mo hoc » mon hoc, co hoc
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: so sach hoc tap, nghien cuu mo hoc nhanh khong hoc xa hoi va ((phap dan) or (pham van))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach hoc tap, nghien cuu mo hoc nhanh khong hoc xa hoi va ((phap dan) OR (pham van)).
• Adding a wildcard symbol may retrieve word variants: so sach hoc tap, nghien cuu mo hoc nhanh khong hoc xa hoi va ((phap dan) or (pham van))*.