Perhaps you should try some spelling variations:
nhanh hung » thanh hung, nhanh hong, nhanh chuong
hoc nhanh » hoc nganh, hoc phan
mach hoc » cach hoc, dich hoc, anh hoc
cuu tuan » huu tuan, chu tuan, cuu toan
chu xuan » chu quang, chuc quan, thi xuan
hung hoc » chung hoc, khung hoc, nhung hoc
tu mach » tu cach, tu manh, tu hach
ma khoi » mai khoi, ra khoi, xa khoi
khoi va » hoi va, khi va, choi va
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 ((cuu tuan) or (chu xuan)) hoc nhanh hung hoc ma khoi va nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu mach hoc tap, nghien ((cuu tuan) OR (chu xuan)) hoc nhanh hung hoc ma khoi va nhan va.
• Adding a wildcard symbol may retrieve word variants: tu mach hoc tap, nghien ((cuu tuan) or (chu xuan)) hoc nhanh hung hoc ma khoi va nhan va*.