Perhaps you should try some spelling variations:
nhanh tuong » nhan tuong, nhanh trong, khanh thuong
hoc nhanh » hoc nganh, hoc phan
tuong hoc » truong hoc, tuong ho, duong hoc
nhan tai » hang tai, van tai, toan tai
so sach » so sanh, bo sach, co sach
doi tap » doi tac, doi tai, doi tan
doi dap » hoi dap, doi dau, do dap
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoc mai » hoc ma, hoc dai, hoc may
mai hoi » mai khoi, dai hoi, lai hoi
va nhan » van nhan, ca nhan, va phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((doi tap) or (doi dap)), nghien cuu mon hoc nhanh tuong hoc mai hoi va nhan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((doi tap) OR (doi dap)), nghien cuu mon hoc nhanh tuong hoc mai hoi va nhan tai*.