Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh tai » thanh tai, hang tai, han tai
cac truc » cau truc, cac tru, cac trung
tai cua » thai cua, tai cuc, tri cua
va hanh » van hanh, va thanh, va danh
truc va » thuc va, thuc vat, trung va
van cac » van hac, van cau, van bac
cua tre » cua te, cuu tre, cua triet
nang xa » lang xa, nang ma, mang xa
su xac » pu xac, su cac
su sac » su sach, su cac

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) OR (su xac)) ky ((nang xa) OR (nang x)) hoi. hieu van cac truc va hanh tai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sac) or (su xac)) ky ((nang xa) OR (nang x)) hoi. hieu van cac truc va hanh tai cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((su sac) or (su xac)) ky ((nang xa) OR (nang x)) hoi. hieu van cac truc va hanh tai cua tre*.