[rramadass]

I generally find Wikipedia a very good starting point to get an overview and a gateway to further research/study; their "See Also" sections list plenty of terms/phrases to look up;

1) https://en.wikipedia.org/wiki/Complex_system#See_also

2) https://en.wikipedia.org/wiki/Self-organization#See_also

3) https://en.wikipedia.org/wiki/Emergence#See_also