'Research' is uncountable, so 'researches' is incorrect (except when its a conjugated verb, ex. "He researches"). You should say "scientific research".

http://en.wiktionary.org/wiki/research Noun[edit] research (countable and uncountable, plural researches) (uncountable) Diligent inquiry or examination to seek or revise facts, principles, theories, applications, etc.; laborious or continued search after truth.   (countable) A particular instance or piece of research.

In a very very specific context, you could use "research" as a countable noun, but in doing so you are pointing at specific examples of research. Your starting point is that "research" is basically an uncountable noun. It's not a case of "both are possible, so I can use either", as this is exactly where mistakes begin. The problem with "Scientific researches have contributed tremendously to the development of society" is that you're suggesting specific examples of research, but you don't indicate what those examples actually are. "Scientific research has contributed tremendously to the development of society" is correct.

Can you give us some sentences?