Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
hanh di » hanh vi, hanh de, hang di
xuc van » duc van, luc van, xuc ban
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
va cao » va cac, va co, va dao
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
va cam » va cham, va cac, va cai
di cua » dai cua, doi cua, de cua

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

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