Talvez debería tentar con algunhas variantes ortográficas:
information propagation » information presentation, information organization
propagation based » propagation case, propagation a, propagation due
based extension » based extraction
david silver » david silver's, daniel silver, david weliver
david peter » david peters, davis peter, davies peter
david side » david siders, david sims, david simple

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

• Performing a fuzzy search may retrieve terms with similar spellings: information propagation based extension ((david side) or (((david silver) or (david peter))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information propagation based extension ((david side) OR (((david silver) OR (david peter)))).
• Adding a wildcard symbol may retrieve word variants: information propagation based extension ((david side) or (((david silver) or (david peter))))*.