Perhaps you should try some spelling variations:
information propagation » information presentation, information organization
propagation how » propagation flow, propagation han, propagation law
how decisions » _ decisions, buy decisions, a decisions
david chieng » david heng, david cohen, david clegg
david chang » david chan, david zhang, david chun
david ching » david machin

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