Perhaps you should try some spelling variations:
communications series » communication series, communications services, communication services
technologies phase » technologies case, technologies past, technologies places
a developpement » au developpement, de developpement, le developpement
des africa » does africa, yes africa, de africa
der data » under data, order data, der daten
series a » series _, series 1, series 2

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies phase transition _ der data communications series a developpement des africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies phase transition _ der data communications series a developpement des africa.*.