I was doing some experimenting on the Mishnah, and tried this search:
<Mishnah ~ m. Zera'im>, <Mishnah ~ m. Mo'ed>, <Mishnah ~ m. Nasim>, <Mishnah ~ m. Neziqin>, <Mishnah ~ m. Qod.>, <Mishnah ~ m. Toharot> (27,720 results in 7,292 articles in my library)
Then I realised it could be simplified to:
<Mishnah ~ m. Zera'im - m. Toharot> (27, 718 results in 7,292 articles)
So where did the missing two results go? And why does (<Mishnah ~ m. Zera'im>, <Mishnah ~ m. Mo'ed>, <Mishnah ~ m. Nasim>, <Mishnah ~ m. Neziqin>, <Mishnah ~ m. Qod.>, <Mishnah ~ m. Toharot>) NOTEQUALS (<Mishnah ~ m. Zera'im - m. Toharot>) not find them?
Mark,
I also get a difference of two - how strange.....