Perhaps you should try some spelling variations:
toc sac » toc sach, toc san, hoc sach
vai cua » dai cua, hai cua, lai cua
dan vai » dan va, dan tai, dan vat
cua tre » cua te, cuu tre, cua triet
van hoe » van hoa, van hoc, van hieu
van hoi » van hoa, van hoc, van loi
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
nam tu » nam thu, nam thuc
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: toc sac ky lang ((van hoi) or (van hoe)). lieu va ((nam tu) or (am thuc)) va dan vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky lang ((van hoi) OR (van hoe)). lieu va ((nam tu) OR (am thuc)) va dan vai cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sac ky lang ((van hoi) or (van hoe)). lieu va ((nam tu) or (am thuc)) va dan vai cua tre*.