Perhaps you should try some spelling variations:
nhanh dong » hanh dong, nhanh chong, anh dong
nghien ha » nghiep ha, nghiem hoa, nghiep nha
thanh hoc » thanh hoa, than hoc, thanh ho
hoc nhanh » hoc nganh, hoc phan
ha thanh » va thanh, pham thanh, phan thanh
dong suc » duong suc, dong luc, dong su
tu mach » tu cach, tu manh, tu sach
tu hach » tu hanh, tu cach, tu sach
suc ma » suc manh
v pham » vi pham, d pham
hoa v » hoa vo, hoa va, hoa vi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu mach) or (tu hach)) hoc tap, nghien ha thanh hoc nhanh dong suc ma hoa v pham van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu mach) OR (tu hach)) hoc tap, nghien ha thanh hoc nhanh dong suc ma hoa v pham van.
• Adding a wildcard symbol may retrieve word variants: ((tu mach) or (tu hach)) hoc tap, nghien ha thanh hoc nhanh dong suc ma hoa v pham van*.