Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
hoc nhanh » hoc nganh, hoc phan
chong hoc » chung hoc, chong doc, thong hoc
sach doi » sach hoi, sach dao, sach bai
sach moi » sach hoi, bach mai, sach bai
nhan tai » hang tai, van tai, toan tai
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
va nhan » van nhan, ca nhan, va phan
hoa va » hoa van, hoa xa, hoa vo

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sach doi) OR (sach moi)) tap, nghien cuu mon hoc nhanh chong hoc ma hoa va nhan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach doi) OR (sach moi)) tap, nghien cuu mon hoc nhanh chong hoc ma hoa va nhan tai*".