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
toc sach » hoc sach, doc sach, thuoc sach
cong hoc » dong hoc, cong hoa, cong coc
ban hang » ngan hang
hang van » hoang van, hang va, dang van
hoi ban » hoi dan, hoi bai, doi ban
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: ((te sach) or (toc sach)) hoc tap, nghien thu cong hoc nganh khong hoc xa hoi ban hang van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) hoc tap, nghien thu cong hoc nganh khong hoc xa hoi ban hang van.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) hoc tap, nghien thu cong hoc nganh khong hoc xa hoi ban hang van*.