Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

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

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 ("head or state"))) OR ("means of shame"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"head of state\") OR (\"heads of state\"))) OR (\"head or state\"))) OR (\"means of shame\"))".
• Removing quotes may allow a broader search: (((((( head of state ) OR ( heads of state ))) OR ( head or state ))) OR ( means of shame )).
• Adding a wildcard symbol may retrieve word variants: (((((("head of state") OR ("heads of state"))) OR ("head or state"))) OR ("means of shame"))*.