Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
sach tham » sach nha
toc sach » hoc sach, doc sach, thuoc sach
lai cua » dai cua, hai cua, lai chau
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
luc va » duc va, loc va
tuc va » thuc va, truc va, tuc xa

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) OR (tuc va)) thanh lai cua 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) OR (tuc va)) thanh lai cua 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) OR (tuc va)) thanh lai cua tre*".