Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thu hanh » thuc hanh, thu thanh, thuy hanh
cua tre » cua te, cuu tre, cua triet
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
cac thu » cach thuc, cac thoi
hieu va » lieu va, hieu qua
hanh xa » hanh va, hanh ma, hanh xu
cam tu » cam thu, nam tu, dam tu
va cam » va cham, va cac, va cao
di cua » dai cua, doi cua, de cua
te cac » tu cac, ve cac, te cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cac thu hanh xa hoi. hieu va cam tu ((((va hanh) or (van thanh))) or (va danh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac thu hanh xa hoi. hieu va cam tu ((((va hanh) OR (van thanh))) OR (va danh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: te cac thu hanh xa hoi. hieu va cam tu ((((va hanh) or (van thanh))) or (va danh)) di cua tre*.