Perhaps you should try some spelling variations:
information propagation » information presentation, information organization
propagation bases » propagation based, propagation basics, propagation case
bases conclusion » bases conclusions, cases conclusion, based conclusion
from seven » from seed, from several
from self » from seed
event » events, even

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 bases conclusion ((((from seven) or (from self))) or (from event))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information propagation bases conclusion ((((from seven) OR (from self))) OR (from event)).
• Adding a wildcard symbol may retrieve word variants: information propagation bases conclusion ((((from seven) or (from self))) or (from event))*.