Perhaps you should try some spelling variations:
vinh cuu » dinh cuu, sinh cua, dinh cu
van dinh » van minh, van dich, va dinh
cuu tre » cua tre, cau tren, cau treo
vu dinh » quy dinh
dang xa » dang xay, lang xa, dang ha
hieu va » lieu va, hieu qua
cau luc » cau truc, cau phuc
sac ky » sai ky
va cau » van cau, va cac, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sac ky) OR (cac ky)) dang xa hoi. hieu va cau luc ((vu dinh) or (van dinh)) vinh cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sac ky) OR (cac ky)) dang xa hoi. hieu va cau luc ((vu dinh) OR (van dinh)) vinh cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sac ky) OR (cac ky)) dang xa hoi. hieu va cau luc ((vu dinh) or (van dinh)) vinh cuu tre".
• Adding a wildcard symbol may retrieve word variants: su ((sac ky) OR (cac ky)) dang xa hoi. hieu va cau luc ((vu dinh) or (van dinh)) vinh cuu tre*.