Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
xa khanh » xa thanh, van khanh, dat khanh
cua tre » cua te, cuu tre, cua triet
xa hanh » xa thanh, va hanh, da hanh
cau tuc » cau truc, cau luc, cau phuc
vai cua » dai cua, hai cua, lai cua
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
cau tu » dau tu, cau truc

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang x ho. hieu van ((cau tuc) OR (cau tu)) ((xa hanh) OR (xa khanh)) vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang x ho. hieu van ((cau tuc) OR (cau tu)) ((xa hanh) or (xa khanh)) vai cua tre~".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang x ho. hieu van ((cau tuc) OR (cau tu)) ((xa hanh) or (xa khanh)) vai cua tre*.