Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
cau tuc » cau truc, cau luc, cau phuc
xa hanh » xa thanh, xa khanh, va hanh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
cau tu » dau tu, cau truc

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: "su sach ky nang x ho. hieu van ((cau tuc) OR (cau tu)) xa hanh vai cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x ho. hieu van ((cau tuc) OR (cau tu)) xa hanh vai cua tre*.