Perhaps you should try some spelling variations:
instrumento biologica » instrumento biologico, instrumento politico
publicaciones e » publicaciones de, publicaciones en, publicaciones y
e instrumento » e instrumentos, de instrumentos, un instrumento
biologica y » biologia y, biologica de, biologicos y
y general » _ general, ley general, y generos

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

• Performing a fuzzy search may retrieve terms with similar spellings: publicaciones e instrumento biologica y general de espana ;~.
• Adding a wildcard symbol may retrieve word variants: publicaciones e instrumento biologica y general de espana ;*.