Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
thuong hoc » truong hoc, tuong hoc, thuong ho
hoc thanh » hoc nhanh, hoan thanh, hoc phan
sach dao » lanh dao
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
mai hoi » mai khoi, dai hoi, lai hoi
van tai » von tai, van tuan
ma hoi » xa hoi, ma hoa, me hoi

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