Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
nhanh khong » nhanh chong, nhan khong, nhanh hong
sach hoc » cach hoc, sach hoi, mach hoc
phan van » pham van, thanh van, luan van
tu sach » thu sach, su sach, te sach
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
va phan » van phan, va phat, va phap
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 mot hoc ((nhanh khong) OR (nganh khong)) hoc xa hoi va phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cuu mot hoc ((nhanh khong) OR (nganh khong)) hoc xa hoi va phan van".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu mot hoc ((nhanh khong) OR (nganh khong)) hoc xa hoi va phan van*.