Perhaps you should try some spelling variations:
mai khoi » mai khoa, tai khoa, cac khoi
dan thuc » dan toc, am thuc
hanh tai » thanh tai, hang tai, han tai
mai hoi » dai hoi, lai hoi, mai doi
thuc xa » thuc xay, tuc xa, thuc va
xa hanh » xa thanh, xa khanh, va hanh
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
tu can » tu ban, tu cac, thu canh
can ky » van ky, dan ky, ban ky
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: tu can ky nang ((mai hoi) or (mai khoi)). lieu va dan thuc xa hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu can ky nang ((mai hoi) OR (mai khoi)). lieu va dan thuc xa hanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu can ky nang ((mai hoi) or (mai khoi)). lieu va dan thuc xa hanh tai cua tre*.