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

• Performing a fuzzy search may retrieve terms with similar spellings: (("1000 Preguntas sobre administracao") OR ("1000 Preguntas sobre administraciones"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"1000 Preguntas sobre administracao\") OR (\"1000 Preguntas sobre administraciones\"))*".
• Removing quotes may allow a broader search: (( 1000 Preguntas sobre administracao ) OR ( 1000 Preguntas sobre administraciones ))*.

Perhaps you should try some spelling variations:
"1000 Preguntas sobre administraciones" » "1000 Preguntas sobre administracion" (Expand Search), "1000 Preguntas entre administraciones" (Expand Search), "1000 Preguntas por administraciones" (Expand Search)
"1000 Preguntas sobre administracao" » "1000 Preguntas sobre administracion" (Expand Search), "1000 Preguntas sobre administrativo" (Expand Search), "1000 Preguntas boa administracao" (Expand Search)
1000 preguntas » 1.000 preguntas (Expand Search), 100 preguntas (Expand Search), 1220 preguntas (Expand Search)