Perhaps you should try some spelling variations:
sach tham » sach nha
thanh lai » thanh hai, thanh lap, thanh loi
toc sach » hoc sach, doc sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
cua tre » cua te, cua triet, dua tren
cac luc » cau luc, coc luc, cac nuoc
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
cuu tre » cau tren, cau treo
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: toc sach tham ((lang xa) or (nang cao)) hoi. hieu va cac luc va thanh lai ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach tham ((lang xa) OR (nang cao)) hoi. hieu va cac luc va thanh lai ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach tham ((lang xa) or (nang cao)) hoi. hieu va cac luc va thanh lai ((cua tre) OR (cuu tre))*".