Perhaps you should try some spelling variations:
nhanh thong » nhanh chong, nhanh thang, nhan thong
nghien cac » nghiep cach, nghien cuu, nghiep cay
hoc nhanh » hoc nganh, hoc phan
thong hoc » thuong hoc, tuong hoc, thong hoa
cac cong » cua cong
cong hoc » dong hoc, cong hoa, cong coc
nhan tai » hang tai, van tai, toan tai
so sach » so sanh, bo sach, co sach
doi dap » doi dau, do dap, doi dam
va nhan » van nhan, ca nhan, va phan
ma hoi » mai hoi, xa hoi, ma hoa

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

• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((doi dap) OR (hoi dap)), nghien cac cong hoc nhanh thong hoc ma hoi va nhan tai~.
• Adding a wildcard symbol may retrieve word variants: so sach ((doi dap) or (hoi dap)), nghien cac cong hoc nhanh thong hoc ma hoi va nhan tai*.