Perhaps you should try some spelling variations:
thanh ca » thanh cha, thanh cac, thanh ha
va thanh » gia thanh, ban thanh, va tinh
lam duoc » nam duoc, luat duoc, lam thuoc
so sach » so sanh, co sach, hoc sach
duoc va » nuoc va, duc va, duoc ma
mai hoi » mai khoi, dai hoi, lai hoi
bo sach » co sach, hoc sach
cua tre » cua te, cuu tre, cua triet
ma hoi » xa hoi, ma hoa, me hoi
va lam » van lam, va lap
ca cua » co cua

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) OR (bo sach)) ky nang ((ma hoi) or (mai hoi)). lieu va lam duoc va thanh ca cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (bo sach)) ky nang ((ma hoi) OR (mai hoi)). lieu va lam duoc va thanh ca cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (bo sach)) ky nang ((ma hoi) or (mai hoi)). lieu va lam duoc va thanh ca cua tre".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (bo sach)) ky nang ((ma hoi) or (mai hoi)). lieu va lam duoc va thanh ca cua tre*.