Perhaps you should try some spelling variations:
nghien thu » nghiem thuc, nghiep thuc, nghien cuu
cuoc nhanh » chuoc thanh, hoc nhanh, quoc khanh
cuoc thanh » chuoc thanh, cuoc tranh, duoc thanh
khong hoc » khung hoc, thong hoc, khong thuoc
sach hoc » cach hoc, sach hoi, mach hoc
nhan dan » phan dau, gian dan, nhan tai
su sach » so sach, vu sach
hoc xa » hoc ma
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: su sach hoc tap, nghien thu cong ((cuoc nhanh) or (cuoc thanh)) khong hoc xa hoi ca nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach hoc tap, nghien thu cong ((cuoc nhanh) OR (cuoc thanh)) khong hoc xa hoi ca nhan dan.
• Adding a wildcard symbol may retrieve word variants: su sach hoc tap, nghien thu cong ((cuoc nhanh) or (cuoc thanh)) khong hoc xa hoi ca nhan dan*.