Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
thuoc sach » hoc sach, nuoc sach, thuat sach
nghien cua » nghien cuu, nghiep cua, nghiep vua
khong hoc » khung hoc, thong hoc, khong thuoc
sach hoc » cach hoc, sach hoi, mach hoc
phan van » pham van, thanh van, luan van
mot hoc » mon hoc, mo hoc, bot hoc
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: thuoc sach hoc tap, nghien cua ((mot hoc) OR (mot goc)) nganh khong hoc xa hoi va phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach hoc tap, nghien cua ((mot hoc) OR (mot goc)) nganh khong hoc xa hoi va phan van".
• Adding a wildcard symbol may retrieve word variants: thuoc sach hoc tap, nghien cua ((mot hoc) OR (mot goc)) nganh khong hoc xa hoi va phan van*.