Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
nhanh hoan » thanh hoang, thanh hoa, khanh hoa
hoc nhanh » hoc nganh, hoc phan
cach hoc » cach thuc, cach thoi, dich hoc
sach doi » sach hoi, sach moi, sach dao
cong hoc » dong hoc, cong hoa, cong coc
hoan hoc » hoa hoc, toan hoc, hoang hoa
hoi benh » hoc benh, hoa benh, hoi binh
nhan van » nhan dan, nhan va, phan van
hoc xa » hoc ma

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) or (sach doi)) tap, nghien thu cong hoc nhanh hoan hoc xa hoi benh nhan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((cach hoc) OR (sach doi)) tap, nghien thu cong hoc nhanh hoan hoc xa hoi benh nhan van.
• Adding a wildcard symbol may retrieve word variants: tu ((cach hoc) or (sach doi)) tap, nghien thu cong hoc nhanh hoan hoc xa hoi benh nhan van*.