Perhaps you should try some spelling variations:
thanh ban » thanh san, thanh van, thanh bac
te sach » toc sach
ban cua » ban quan
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
bo sach » co sach, hoc sach
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (bo sach)) ky nang x hoi. hieu ve cam ((xuc va) or (tuc va)) thanh ban cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (bo sach)) ky nang x hoi. hieu ve cam ((xuc va) OR (tuc va)) thanh ban cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (bo sach)) ky nang x hoi. hieu ve cam ((xuc va) or (tuc va)) thanh ban cua tre*.