Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
hoc nhanh » hoc nganh, hoc phan
chong doc » chong dich, chon loc, hong duc
gianh dan » gian dan, giang day, giang van
sach doi » sach hoi, sach dao, sach bai
sach moi » sach hoi, bach mai, sach bai
va gianh » va gian, van giang, va giai
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
doc bai » hoc bai, doc hai, doi bai
bai hoi » bai choi, bai hoc, dai hoi

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 doi) or (sach moi)) tap, nghien cuu mon hoc nhanh chong doc bai hoi va gianh dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach doi) OR (sach moi)) tap, nghien cuu mon hoc nhanh chong doc bai hoi va gianh dan*.