Perhaps you should try some spelling variations:
communications effects » communication efforts, communication effective, communication aspects
model development » local development, social development, global development
information und » informations und
africa oil » african oil
da data » dna data, a data, 2a data
und da » und das, und daf, und dav

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies _ information und da data communications effects model development africa oil.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information und da data communications effects model development africa oil.*.