Perhaps you should try some spelling variations:
thien van » thi van
thanh hai » thanh phan, thanh hoa, thanh san
lang van » dang van, tang van, hoang van
hai cua » thai cua, dai cua, hoi cua
van cam » van nam, van lam, van cau
su sach » so sach, vu sach
lang xa » lang ha, dang xay
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((lang xa) OR (lang van)) hoi. thien van cam ((xuc va) OR (tuc xa)) thanh hai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y ((lang xa) OR (lang van)) hoi. thien van cam ((xuc va) or (tuc xa)) thanh hai cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sach y ((lang xa) OR (lang van)) hoi. thien van cam ((xuc va) or (tuc xa)) thanh hai cua tre*.