Perhaps you should try some spelling variations:
khong thuoc » khang thuoc, hong phuoc, dong thuoc
hoc nhanh » hoc phan
cach hoc » cach thuc, cach thoi, dich hoc
thuoc xa » thuoc ma, thuoc va, thuoc la
nhan dan » phan dau, gian dan, nhan tai
tu cach » tu cac
hoi ca » hoi cua, hoi cac, hoi cau

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 khoa ((hoc nhanh) OR (hoc nganh)) khong thuoc xa hoi ca nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cach hoc tap, nghien cuu khoa ((hoc nhanh) OR (hoc nganh)) khong thuoc xa hoi ca nhan dan".
• Adding a wildcard symbol may retrieve word variants: tu cach hoc tap, nghien cuu khoa ((hoc nhanh) OR (hoc nganh)) khong thuoc xa hoi ca nhan dan*.