Perhaps you should try some spelling variations:
doanh khoa » toan khoa
thanh hoa » thanh pho
cach hoc » cach thuc, cach thoi, dich hoc
phan dau » phan tu, hang dau
tu cach » tu cac
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong 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: tu cach hoc tap, nghien cuu mon hoc ((doanh khoa) or (thanh hoa)) hoc xa hoi va phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach hoc tap, nghien cuu mon hoc ((doanh khoa) OR (thanh hoa)) hoc xa hoi va phan dau.
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cuu mon hoc ((doanh khoa) or (thanh hoa)) hoc xa hoi va phan dau*.