Perhaps you should try some spelling variations:
ciencies experimentals » ciencias experimentales, science experiments
ciencias experimentos » ciencias experimentales, ciencias instrumentos, science experiments
ciencia experimentos » ciencias experimentales, science experiments, en experimentos
la tecnologia » y tecnologia

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((ciencias experimentos) or (ciencies experimentals))) or (ciencia experimentos)) la tecnologia ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ciencias experimentos) OR (ciencies experimentals))) OR (ciencia experimentos)) la tecnologia ;.
• Adding a wildcard symbol may retrieve word variants: ((((ciencias experimentos) or (ciencies experimentals))) or (ciencia experimentos)) la tecnologia ;*.