Perhaps you should try some spelling variations:
hang tai » hang va, dung tai
tai cua » thai cua, tai cuc, tri cua
truc va » thuc va, thuc vat, trung va
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
xuc va » duc va, tuc va, luc va
nang o » nang co, nang ho, nang ro
va cam » va cham, va cac, va cao
o hoi » co hoi, o hoc, o hai

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 o hoi. hieu va cam ((xuc va) or (truc 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 o hoi. hieu va cam ((xuc va) OR (truc va)) hang tai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((so sanh) or (do sanh)) ky nang o hoi. hieu va cam ((xuc va) or (truc va)) hang tai cua tre*.