Perhaps you should try some spelling variations:
thien van » thi van
thanh vai » thanh hai, thanh van, thanh tai
sach tay » xach tay, sach hay, sach nay
dang xay » dang van, van xay
vai cua » dai cua, hai cua, lai cua
van cam » van nam, van lam, van cau
so sach » so sanh, bo sach, co sach
lang xa » lang ha, lang van
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, luc va, xac 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: so sach tay ((lang xa) OR (dang xay)) hoi. thien van cam ((xuc va) or (tuc va)) thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach tay ((lang xa) OR (dang xay)) hoi. thien van cam ((xuc va) OR (tuc va)) thanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach tay ((lang xa) OR (dang xay)) hoi. thien van cam ((xuc va) or (tuc va)) thanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach tay ((lang xa) OR (dang xay)) hoi. thien van cam ((xuc va) or (tuc va)) thanh vai cua tre*.