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", "head of shame", "mead of state", "read of state", "lead of state"
"heads of state" » "heads or state", "heads of hate", "heads of shame", "means of state", "years of state", "meads of state", "reads of state", "leads of state"
"leads of shape" » "lens of shape", "means of shape", "years of shape", "leads of shame", "leads of hate"
"had of late" » "had of hate", "had of latin"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((((("head of state") OR ("heads of state"))) OR ("had of late"))) OR ("leads of shape"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"head of state\") OR (\"heads of state\"))) OR (\"had of late\"))) OR (\"leads of shape\"))".
• Removing quotes may allow a broader search: (((((( head of state ) OR ( heads of state ))) OR ( had of late ))) OR ( leads of shape )).
• Adding a wildcard symbol may retrieve word variants: (((((("head of state") OR ("heads of state"))) OR ("had of late"))) OR ("leads of shape"))*.