Perhaps you should try some spelling variations:
hoc nhanh » hoc nganh, hoc phan
nhanh hoa » nhanh hoan, thanh hoa, khanh hoa
sach hoi » sach doi, sach moi, cach thoi
cac luan » cac luat, sach luan, cac dan
tu sach » thu sach, su sach, te sach
hoi cac » hoc cac, voi cac, hoa cac
hoc xa » hoc ma
tinh » trinh, dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach hoi dap, nghien ((cuu tinh) or (cuu mo)) hoc nhanh hoa hoc xa hoi cac luan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoi dap, nghien ((cuu tinh) OR (cuu mo)) hoc nhanh hoa hoc xa hoi cac luan van.
• Adding a wildcard symbol may retrieve word variants: tu sach hoi dap, nghien ((cuu tinh) or (cuu mo)) hoc nhanh hoa hoc xa hoi cac luan van*.