Is it OK to say scientific researches?
According to my dictionary, 'researches' is a correct word, but Microsoft Word complains that 'scientific researches' is wrong, while 'researches' used alone is right.

Does 'scientific researches' sound OK to you?

Could you possibly explain the reason?

Thank you.eg:

Gould was helped in his researches by local naturalists. (from Longman Dictionary of Contemporary English and considered correct by Microsoft Word)

Scientific researches have contributed tremendously to the development of society. (Written by me and deemed incorrect by Word)

Question

Is it OK to say scientific researches?
According to my dictionary, 'researches' is a correct word, but Microsoft Word complains that 'scientific researches' is wrong, while 'researches' used alone is right.

Does 'scientific researches' sound OK to you?

Could you possibly explain the reason?

Thank you.eg:

Gould was helped in his researches by local naturalists. (from Longman Dictionary of Contemporary English and considered correct by Microsoft Word)

Scientific researches have contributed tremendously to the development of society. (Written by me and deemed incorrect by Word)

Answer

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

Answer

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.

Answer

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.

Answer

Can you give us some sentences?