Unlike data, research should always be used as a
Can you say researches?
In American English, "Researches are going on" is grammatically incorrect. As a noun, "research" is not countable. If Americans want to talk about more than one research project, they talk about "research projects", not "researches". As a verb, "research" is conjugated the usual way.
How do you say multiple research?
"Research" by itself is an uncountable noun, however, according to this, "researches", as a plural noun, is also acceptable, and it should be treated as "research".