Perhaps you should try some spelling variations:
hoc nhanh » hoc nganh, hoc phan
nhanh hoa » nhanh hoan, thanh hoa, khanh hoa
tinh hoc » tin hoc, hinh hoc, trinh hoa
toan tai » toan tap, doanh tai, toan ban
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va toan » van toan, bai toan, tap toan
ma hoi » mai hoi, xa hoi, ma hoa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((tinh hoc) or (sinh hoc)) tap, nghien cuu mon hoc nhanh hoa hoc ma hoi va toan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((tinh hoc) OR (sinh hoc)) tap, nghien cuu mon hoc nhanh hoa hoc ma hoi va toan tai.
• Adding a wildcard symbol may retrieve word variants: tu ((tinh hoc) or (sinh hoc)) tap, nghien cuu mon hoc nhanh hoa hoc ma hoi va toan tai*.