Perhaps you should try some spelling variations:
hanh tien » hanh tieng, thanh tien, hanh tin
ban hanh » ban hang
tien cua » trien cua, tiep cua, dien cua
so sang » so sanh, so dang, so lang
sang ky » sang kyo, dang ky, tang ky
cac tac » cac bac, cac dac, cac tai
cac toc » cac toi, cac nuoc, cac thoi
cua tre » cua te, cuu tre, cua triet
x hoi » xa hoi, o hoi, x ho

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "so sang ky nang x hoi. hieu qua ((cac tac) OR (cac toc)) ban hanh tien cua tre~".
• Adding a wildcard symbol may retrieve word variants: so sang ky nang x hoi. hieu qua ((cac tac) OR (cac toc)) ban hanh tien cua tre*.