Perhaps you should try some spelling variations:
information propagation » information presentation, information organization
propagation buy » propagation due, propagation lazy, propagation _
david openg » david heng, david chieng
david hung » david hong, david heng, david hume
decisions » decision

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 buy decisions ((((david openg) or (david owens))) or (david hung))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: information propagation buy decisions ((((david openg) OR (david owens))) OR (david hung)).
• Adding a wildcard symbol may retrieve word variants: information propagation buy decisions ((((david openg) or (david owens))) or (david hung))*.