Perhaps you should try some spelling variations:
nghien huu » nghien cuu, nguyen huu, nhiem huu
hoc nhanh » hoc phan
khong hoc » khung hoc, thong hoc, khong thuoc
sach hoc » cach hoc, sach hoi, mach hoc
nhan dan » phan dau, gian dan, nhan tai
tu sach » thu sach, su sach, te sach
huu mon » huu son, hau mon, huu mot
va nhan » van nhan, ca nhan, va phan
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: tu sach hoc tap, nghien huu mon ((hoc nganh) OR (hoc nhanh)) khong hoc xa hoi va nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien huu mon ((hoc nganh) OR (hoc nhanh)) khong hoc xa hoi va nhan dan".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien huu mon ((hoc nganh) OR (hoc nhanh)) khong hoc xa hoi va nhan dan*.