Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
va thanh » gia thanh, ban thanh, va tinh
lai cua » dai cua, hai cua, lai chau
cam luc » cam xuc, cau luc
sach ty » sach tu, sach thu, xach tay
cua tre » cua te, cuu tre, cua triet
hieu va » hieu qua
nang co » nang cao, nang doc, nang noi
co loi » co hoi
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) or (sach y)) nang co loi. ((hieu va) OR (lieu va)) cam luc va thanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach y)) nang co loi. ((hieu va) OR (lieu va)) cam luc va thanh lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) or (sach y)) nang co loi. ((hieu va) OR (lieu va)) cam luc va thanh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: su ((sach ty) or (sach y)) nang co loi. ((hieu va) OR (lieu va)) cam luc va thanh lai cua tre*.