Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
nhanh khong » nhanh chong, nhan khong, nhanh hong
van phong » van dong, hai phong
sach hoc » cach hoc, sach hoi, mach hoc
phong tu » phong tuc, thong tu, phong thuy
tu sach » thu sach, su sach, te sach
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoi van » hoi va, hoi dan, hai van
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 cuu mon hoc ((nhanh khong) OR (nganh khong)) hoc xa hoi van phong tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cuu mon hoc ((nhanh khong) OR (nganh khong)) hoc xa hoi van phong tu".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu mon hoc ((nhanh khong) OR (nganh khong)) hoc xa hoi van phong tu*.