Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thuc ban » thuoc ban, thuc dan, thu ban
cam thuc » am thuc, nam thuc, cam thu
hieu va » lieu va, hieu qua
van cua » vang cua, dan cua, nan cua
ban cua » ban quan
so dac » so dan
dac ky » cac ky, dan ky, sac ky
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, 5 hoi

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: so dac ky nang ((x hoi) OR (x ho)). hieu va cam thuc ban thanh ((van cua) OR (ban cua)) tre~.
• Adding a wildcard symbol may retrieve word variants: so dac ky nang ((x hoi) or (x ho)). hieu va cam thuc ban thanh ((van cua) or (ban cua)) tre*.