Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
van hanh » ban hanh, van anh, van ban
thai cua » than cua, tai cuc, tri cua
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
nang o » nang co, nang ho, nang ro
ve cac » va cac, vien cac
o lai » o lao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang o lai. hieu ve cac xuc ((van hanh) OR (van thanh)) thai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang o lai. hieu ve cac xuc ((van hanh) OR (van thanh)) thai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang o lai. hieu ve cac xuc ((van hanh) OR (van thanh)) thai cua tre*.