Lately I started to wonder whether or not there might exist a general priority scheme for the assembley of search engine operators within strings. While asking this, I have the priority rankings in mind which software programmers use to keep their operator priorities straight. I mean obviously those operators defining what shall be included in a search are to be placed before those defining what shall be excluded. But is there a certain order for the arrangement of advanced operators like intitle: inurl: intext: and so on?