Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
cua tre » cua te, cuu tre, cua triet
tai cua » thai cua, tai cuc, tri cua
nang ma » tang ma, sang ma, nang cao
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va, hieu qua
te sac » te sach, te cac, te san
luc va » duc va, tuc va, loc va
ma hoi » mai hoi, xa hoi, ma hoa
tu san » thu san, tu ban, tu can
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) or (tu san)) ky nang ma hoi. hieu va cam ((luc va) or (thuc va)) hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (tu san)) ky nang ma hoi. hieu va cam ((luc va) OR (thuc va)) hanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (tu san)) ky nang ma hoi. hieu va cam ((luc va) or (thuc va)) hanh tai cua tre*.