Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
thu sach » tu sach, thuat sach, thuoc sach
sach ty » sach y, sach tu, sach thu
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, duc va

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

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