I am using the REST version of the API for Microsoft Academic Search
It works well.
Is there a way to select (using OR) multiple things in a search?
Is an example search with AND but is there a way to do OR - specifically I need to OR together different DomainID - like the search interface has at the main MAS site, where users can pick multiple domains.
That is not currently supported in the API. One approach is to make multiple API calls (one for each DomainID) and to union the results.