Perhaps you should try some spelling variations:
information propagation » information presentation, information organization
propagation han » propagation a, propagation lab, propagation law
han decisions » hyman decisions, chain decisions, khan decision
david chieng » david ching, david chang, david heng
david openg » david owens, david heng
david hung » david hong, david heng, david hume

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