Perhaps you should try some spelling variations:
khong thuoc » khang thuoc, hong phuoc, dong thuoc
nhanh khong » nhanh chong, nganh khong, nhan khong
hoc nhanh » hoc nganh, hoc phan
mach hoc » dich hoc, anh hoc, bac hoc
cach hoc » cach thuc, cach thoi, dich hoc
cuu hoan » luu hoang, cuu van, cuu khoa
hoan hoc » hoa hoc, toan hoc, hoang hoa
thuoc xa » thuoc ma, thuoc va, thuoc la
cua toan » cuu toan, xuan toan, cua thanh
toan tai » toan tap, doanh tai, toan ban
hoi cua » hoi chuc

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