Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
nhanh cong » nhanh chong, thanh cong, nganh cong
hoc nhanh » hoc nganh, hoc phan
sach hoc » cach hoc, sach hoi, mach hoc
cong hoc » dong hoc, cong hoa, cong ho
cong coc » cong cuoc, cong cac, cong co
cam nhan » cam chan, cam nang, cu nhan
tu sach » thu sach, su sach, te sach
coc xa » hoc xa, cac xa, coc ha
xa hoa » xa khoa, xa hoi, ma 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 sach hoc tap, nghien cua cong hoc nhanh cong coc xa hoa ((cam nhan) OR (ca nhan)) tao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach hoc tap, nghien cua cong hoc nhanh cong coc xa hoa ((cam nhan) OR (ca nhan)) tao".
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cua cong hoc nhanh cong coc xa hoa ((cam nhan) OR (ca nhan)) tao*.