Perhaps you should try some spelling variations:
hanh dinh » thanh dinh, hinh dinh, hanh tinh
hieu van » hieu va, thien van, lieu va
dinh cuu » dinh chi
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
van cac » van hac, van cau, van bac
cuu tre » cua tre, cau tren, cau treo
loc va » hoc va
luc va » duc va, tuc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu va ky ((nang xa) or (lang xa)) hoi. hieu van cac ((loc va) or (luc va)) hanh dinh cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu va ky ((nang xa) OR (lang xa)) hoi. hieu van cac ((loc va) OR (luc va)) hanh dinh cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu va ky ((nang xa) or (lang xa)) hoi. hieu van cac ((loc va) or (luc va)) hanh dinh cuu tre*.