Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
toc sach » hoc sach, doc sach, thuoc sach
cham doc » chat doc, chau doc, pham duc
va thanh » gia thanh, ban thanh, va tinh
cau tren » cu tren, dau tren, ca tren
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
hang ma » hang va, hang ca, tang ma
ty hang » ly hang, ty xang, thi hang
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ty hang ma hoi. hieu ve ((cham doc) OR (cham soc)) va thanh lai ((cua tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty hang ma hoi. hieu ve ((cham doc) OR (cham soc)) va thanh lai ((cua tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ty hang ma hoi. hieu ve ((cham doc) OR (cham soc)) va thanh lai ((cua tre) or (cau tren))".
• Adding a wildcard symbol may retrieve word variants: toc sach ty hang ma hoi. hieu ve ((cham doc) OR (cham soc)) va thanh lai ((cua tre) or (cau tren))*.