Perhaps you should try some spelling variations:
thanh va » thanh van, hanh va, thanh ha
thanh ve » hanh ve, thanh vien, thanh van
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
van cau » van dau, van hau, van chat
van cam » van nam, van lam, van dam
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
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.

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