Perhaps you should try some spelling variations:
khang thuoc » khong thuoc, dang thuoc, hanh thuoc
nhanh khang » nhanh thang, nhanh quang, nhanh thanh
hoc nhanh » hoc nganh, hoc phan
cach hoc » cach thuc, cach thoi, dich hoc
cuu dong » cuu cong, cuu long, luu dong
cuu tong » cuu cong, cuu tinh, huu tung
thuoc va » thuc va, thuoc ma, thuong va
phap vat » phap luat, phap phat, phap viet
tu cach » tu cac
hoi ban » hoi dan, hoi bai, doi ban
va hoi » xa hoi, va hoc, va hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cach hoc tap, nghien ((cuu dong) or (cuu tong)) hoc nhanh khang thuoc va hoi ban phap vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach hoc tap, nghien ((cuu dong) OR (cuu tong)) hoc nhanh khang thuoc va hoi ban phap vat.
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien ((cuu dong) or (cuu tong)) hoc nhanh khang thuoc va hoi ban phap vat*.