Perhaps you should try some spelling variations:
hieu van » thien van, lieu va
hieu va » lieu va, hieu qua
va hang » van hang, va nang, va lang
hang di » hang doi, hang vi, hang dien
cua tre » cua te, cuu tre, cua triet
ke san » ke dan
san ky » sang ky, van ky, dan ky
cam tu » cam thu, nam tu, dam tu
di cua » dai cua, doi cua, de cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ke san ky nang x ho. ((((hieu ve) OR (hieu va))) OR (hieu van)) cam tu va hang di cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ke san ky nang x ho. ((((hieu ve) OR (hieu va))) or (hieu van)) cam tu va hang di cua tre~".
• Adding a wildcard symbol may retrieve word variants: ke san ky nang x ho. ((((hieu ve) OR (hieu va))) or (hieu van)) cam tu va hang di cua tre*.