Perhaps you should try some spelling variations:
dan thuc » dan toc, am thuc
nang tai » hang tai, tang tai, sang tai
than cua » nhan cua, thai cua, ban cua
day thuc » cay thuc, dai thuc, dam thuc
xa hanh » xa thanh, xa khanh, da hanh
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
tai hoi » tai khoi, dai hoi, tai hai
can ky » van ky, dan ky, ban ky
tu can » tu ban, tu cac, thu canh

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 tai hoi. lieu va ((day thuc) OR (dan thuc)) ((xa hanh) or (va hanh)) than cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu can ky nang tai hoi. lieu va ((day thuc) OR (dan thuc)) ((xa hanh) OR (va hanh)) than cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu can ky nang tai hoi. lieu va ((day thuc) OR (dan thuc)) ((xa hanh) or (va hanh)) than cua tre".
• Adding a wildcard symbol may retrieve word variants: tu can ky nang tai hoi. lieu va ((day thuc) OR (dan thuc)) ((xa hanh) or (va hanh)) than cua tre*.