Perhaps you should try some spelling variations:
ngay thuc » nghe thuc, nhan thuc, nam thuc
hanh tai » thanh tai, hang tai, han tai
cua tre » cua te, cuu tre, cua triet
tai cua » thai cua, tai cuc, tri cua
xa hanh » xa thanh, xa khanh, va hanh
thuc xa » thuc xay, tuc xa, thuc va
va ngay » va nay, tan ngay
dai hoi » dai hoc, dai hai, dai moi
mai hoi » mai khoi, lai hoi, mai doi
sang ky » sang kyo, dang ky, tang ky
san ky » van ky, dan ky, ban ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((san ky) or (sang ky)) nang ((mai hoi) OR (dai hoi)). lieu va ngay thuc xa hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((san ky) OR (sang ky)) nang ((mai hoi) OR (dai hoi)). lieu va ngay thuc xa hanh tai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((san ky) or (sang ky)) nang ((mai hoi) OR (dai hoi)). lieu va ngay thuc xa hanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((san ky) or (sang ky)) nang ((mai hoi) OR (dai hoi)). lieu va ngay thuc xa hanh tai cua tre*.