Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
hoc nhanh » hoc nganh, hoc phan
khong hoc » khung hoc, thong hoc, khong thuoc
tuong hoc » truong hoc, tuong ho, duong hoc
mach hoc » cach hoc, dich hoc, anh hoc
cong hoc » dong hoc, cong hoa, cong coc
tu mach » tu cach, tu manh, tu hach
va nhan » van nhan, ca nhan, va phan
nhan va » nhan tai, nhan dan, nhan tao

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 hoc tap, nghien cua cong hoc nhanh ((khong hoc) or (tuong hoc)) xa hoi va nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu mach hoc tap, nghien cua cong hoc nhanh ((khong hoc) OR (tuong hoc)) xa hoi va nhan va.
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien cua cong hoc nhanh ((khong hoc) or (tuong hoc)) xa hoi va nhan va*.