Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
hoc nganh » hoc nhanh
khong hoc » khung hoc, thong hoc, khong thuoc
sach doi » sach hoi, sach moi, sach dao
sach bai » sach dao, cac bai, sach xa
cong hoc » dong hoc, cong hoa, cong coc
cam nhan » ca nhan, cam chan, cam nang
nhan tai » hang tai, van tai, toan tai
hoi cam » hoi cham, hoi cac, hoi cau
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 doi) or (sach bai)) tap, nghien thu cong hoc nganh khong hoc xa hoi cam nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach doi) OR (sach bai)) tap, nghien thu cong hoc nganh khong hoc xa hoi cam nhan tai.
• Adding a wildcard symbol may retrieve word variants: tu ((sach doi) or (sach bai)) tap, nghien thu cong hoc nganh khong hoc xa hoi cam nhan tai*.