Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"head of state" » "head or state", "head of hate", "mead of state", "read of state", "lead of state"
"heads of state" » "heads or state", "heads of hate", "means of state", "years of state", "meads of state", "reads of state", "leads of state"
"had of shame" » "had of hate"
"heads of late" » "means of late", "years of late", "heads of hate", "heads of latin", "meads of late", "reads of late", "leads of late"

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: "((((\"head of state\") OR (\"had of shame\"))) OR (((\"heads of state\") OR (\"heads of late\"))))~".
• Removing quotes may allow a broader search: (((( head of state ) OR ( had of shame ))) OR ((( heads of state ) OR ( heads of late ))))~.
• Adding a wildcard symbol may retrieve word variants: (((("head of state") OR ("had of shame"))) OR ((("heads of state") OR ("heads of late"))))*.