Perhaps you should try some spelling variations:
nang lai » nang tai, mang lai, nang hai
hanh tai » thanh tai, hang tai, han tai
nang cai » nang cao, nang tai, nang cap
thuc xay » thuc day, tuc xay, thuat xay
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
thuc xa » tuc xa, thuc va, thuc ha
va nay » va ngay, va cay
tu van » tu va

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

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