Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"read of state" » "read of hate", "read of late", "triad of state"
"heads of shame" » "means of shame", "years of shame", "heads of hate", "hads of shame", "meads of shame", "leads of shame"
"heads of sham" » "means of sham", "years of sham", "hads of sham", "meads of sham", "leads of sham"
"head or state" » "had or state", "mead or state", "lead 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: (((("read of state") OR ("head or state"))) OR ((("heads of shame") OR ("heads of sham"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"read of state\") OR (\"head or state\"))) OR (((\"heads of shame\") OR (\"heads of sham\"))))".
• Removing quotes may allow a broader search: (((( read of state ) OR ( head or state ))) OR ((( heads of shame ) OR ( heads of sham )))).
• Adding a wildcard symbol may retrieve word variants: (((("read of state") OR ("head or state"))) OR ((("heads of shame") OR ("heads of sham"))))*.