Perhaps you should try some spelling variations:
te sach » toc sach
dan dai » dat dai, can dai, dan dat
va chat » van chat, va phat, cao chat
ve cham » va cham, ve chat, vu cham
cao hoi » cau hoi, co hoi, cao hoc
tu cach » tu cac
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
va dan » ca dan, va dao, va dau

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 (tu cach)) ky nang cao hoi. hieu ((ve cham) or (va chat)) xuc va dan dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (tu cach)) ky nang cao hoi. hieu ((ve cham) OR (va chat)) xuc va dan dai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (tu cach)) ky nang cao hoi. hieu ((ve cham) or (va chat)) xuc va dan dai cua tre*.