That is strange.
I just got the same results as LucyT for Mombasa, Kenya
I just got:
Results 1 - 10 of about 4,650 for Obama birthplace Mombasa Kenya
at 3:37 p.m. EST, which is 10 more than I got last time, but still 750 less than you and LucyT. I don’t know anything about search engines. Maybe this kind of variability is normal. Or not. Anybody know?