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
thanh van » thanh san, thanh toan, thanh phan
mach hoc » cach hoc, dich hoc, anh hoc
cong hoc » dong hoc, cong hoa, cong coc
te mach » ke mach, te sach, tim mach
hoi ban » hoi dan, doi ban, hoc ban
hoi bai » hoc bai, hoi tai, khoi bay
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 mach hoc tap, nghien thu cong hoc nganh khong hoc xa ((hoi ban) or (hoi bai)) thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te mach hoc tap, nghien thu cong hoc nganh khong hoc xa ((hoi ban) OR (hoi bai)) thanh van.
• Adding a wildcard symbol may retrieve word variants: te mach hoc tap, nghien thu cong hoc nganh khong hoc xa ((hoi ban) or (hoi bai)) thanh van*.