Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
thanh ve » hanh ve, thanh va, thanh vien
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va
ve cua » le cua, de cua, te cua
x hoi » o hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang ((x hoi) OR (xa hoi)). hieu van cham ((tuc xa) or (luc va)) thanh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ((x hoi) OR (xa hoi)). hieu van cham ((tuc xa) OR (luc va)) thanh ve cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky nang ((x hoi) OR (xa hoi)). hieu van cham ((tuc xa) or (luc va)) thanh ve cua tre".
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ((x hoi) OR (xa hoi)). hieu van cham ((tuc xa) or (luc va)) thanh ve cua tre*.