Perhaps you should try some spelling variations:
nhanh khong » nhanh chong, nganh khong, nhan khong
khong thuoc » khang thuoc, hong phuoc, dong thuoc
hoc nhanh » hoc nganh, hoc phan
mach hoc » cach hoc, dich hoc, anh hoc
cach noi » cach thoi, hanh noi, anh noi
thuoc ma » hoc ma, duoc ma
dai nhan » dai han, dai nhat, dac nhan
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
hoa dai » hoa dan, hoc dai
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) or (cach noi)) tap, nghien cuu mon hoc nhanh khong thuoc ma hoa dai nhan va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((mach hoc) OR (cach noi)) tap, nghien cuu mon hoc nhanh khong thuoc ma hoa dai nhan va*.