Perhaps you should try some spelling variations:
bibliografie » bibliografia, bibliographies, bibliography
bibliographic » bibliography
bibliographical » bibliographyal
bibliographie » bibliography

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((bibliografie OR bibliographic) OR (bibliographie OR bibliographical)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bibliografie OR bibliographic) or (bibliographie or bibliographical))".
• Adding a wildcard symbol may retrieve word variants: ((bibliografie OR bibliographic) or (bibliographie or bibliographical))*.