Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
su sach » so sach, vu sach
lai cua » dai cua, hai cua, lai chau
truc va » thuc va, thuc vat, trung va
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
hieu va » lieu va
hang co » hang cho, hang ca, nang co
ty hang » ly hang, ty xang, thi hang
xuc va » duc va, tuc va, luc va
co loi » co hoi

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 hang co loi. ((hieu va) OR (hieu qua)) cam ((xuc va) or (truc va)) thanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty hang co loi. ((hieu va) OR (hieu qua)) cam ((xuc va) OR (truc va)) thanh lai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty hang co loi. ((hieu va) OR (hieu qua)) cam ((xuc va) or (truc va)) thanh lai cua tre*".