Perhaps you should try some spelling variations:
nganh khong » nhanh chong, nganh nong, nganh khoa
nghien cua » nghien cuu, nghiep cua, nghiep vua
nganh cong » nhanh chong, thanh cong
sach hoc » cach hoc, sach hoi, mach hoc
van phan » van phong, van thanh, luan phan
tu sach » thu sach, su sach, te sach
mot hoc » mon hoc, mo hoc, mot goc
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 cua mot hoc ((nganh khong) or (nganh cong)) hoc xa hoi van phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, nghien cua mot hoc ((nganh khong) OR (nganh cong)) hoc xa hoi van phan tu.
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cua mot hoc ((nganh khong) or (nganh cong)) hoc xa hoi van phan tu*.