Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
ban hanh » ban hang
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
cua tre » cuu tre, cua triet, dua tren
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
cua te » cua tu
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: tu san ky nang x hoi. hieu va cac xuc ((van thanh) or (ban hanh)) vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky nang x hoi. hieu va cac xuc ((van thanh) OR (ban hanh)) vi ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu san ky nang x hoi. hieu va cac xuc ((van thanh) or (ban hanh)) vi ((cua tre) or (cua te))*.