Perhaps you should try some spelling variations:
nhanh trong » hanh trong, nhan trong, chinh trong
hoc nhanh » hoc nganh, hoc phan
sach dao » lanh dao
trong ho » trong tho, trong cho, trong hao
van tuan » van quan, van ban, anh tuan
so sach » so sanh, bo sach, co sach
dao tap » dao tao, dao tay, dao gap
cuu mon » cuu mo, cuu mot, cuu cong
mon hoc » toan hoc, dong hoc
van tai » von tai
ma hoi » mai hoi, xa hoi, ma hoa
ho ma » hoc ma, co ma, ho ba

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 dao tap, nghien cuu mon hoc nhanh trong ho ma hoi va ((van tai) OR (van tuan))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach dao tap, nghien cuu mon hoc nhanh trong ho ma hoi va ((van tai) OR (van tuan))*".