Perhaps you should try some spelling variations:
information propagation » information presentation, information organization
propagation data » propagation damage, propagation delay, propagation a
retention modes » prevention model, retention index, attention model
data retention » earth retention, data reduction
modes wave » mode wave, models waves, modes water

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 data retention modes wave~.
• Adding a wildcard symbol may retrieve word variants: information propagation data retention modes wave*.