Perhaps you should try some spelling variations:
preface information » preface informatics, private information, price information
technology preface » technology artefact, terminology preface, technology private
information laws » information law
de mobile » die mobile, e mobile, does mobile
laws de » laws d, laws we
systems » system

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology preface information laws de mobile communication systems a development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology preface information laws de mobile communication systems a development _ afrique.*.