Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
van hanh » ban hanh, van anh, van ban
hieu van » hieu va, thien van, lieu va
te sach » toc sach
cac xuc » cam xuc, cac nuoc, chat xuc
van cac » van hac, van cau, van bac
cua tre » cua te, cuu tre, cua triet
v nang » va nang, vu nang, van nang
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 ((ky nang) or (v nang)) xa hoi. hieu van cac xuc ((van hanh) OR (van thanh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky nang) OR (v nang)) xa hoi. hieu van cac xuc ((van hanh) OR (van thanh)) di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky nang) or (v nang)) xa hoi. hieu van cac xuc ((van hanh) OR (van thanh)) di cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((ky nang) or (v nang)) xa hoi. hieu van cac xuc ((van hanh) OR (van thanh)) di cua tre*.