Perhaps you should try some spelling variations:
vao hoang » van hoang, tao khoang, van hoan
va hoang » van hoang, va hang, ve hoang
cua tre » cua te, cuu tre, cua triet
hai cua » thai cua, dai cua, hoi cua
nang xa » nang x, lang xa, nang ma
va cam » va cham, va cac, va cao
ve cac » va cac, vien cac
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 xa hoi. hieu ((ve cac) or (va cam)) tuc ((va hoang) OR (vao hoang)) hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu van ky nang xa hoi. hieu ((ve cac) OR (va cam)) tuc ((va hoang) OR (vao hoang)) hai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu van ky nang xa hoi. hieu ((ve cac) or (va cam)) tuc ((va hoang) OR (vao hoang)) hai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu van ky nang xa hoi. hieu ((ve cac) or (va cam)) tuc ((va hoang) OR (vao hoang)) hai cua tre*.