Perhaps you should try some spelling variations:
hang tai » hang va, dung tai
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sanh) or (do sanh)) ky nang x hoi. hieu va cam ((xuc va) or (thuc va)) hang tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sanh) OR (do sanh)) ky nang x hoi. hieu va cam ((xuc va) OR (thuc va)) hang tai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((so sanh) or (do sanh)) ky nang x hoi. hieu va cam ((xuc va) or (thuc va)) hang tai cua tre*.