I was just doing some keyword research and came across this
Does the allintitle give you inconsistent results sometimes?
I tried it for the keyword "targeted email marketing" and it was 4740 results on Friday and today it gives 35,100 results today
Have you come across this before?
Try this allintitle:"hedge fund management" , gives 52000 results...now go to the 20th page and it gives 209 results
Moreover, the number sometimes changes after 15 minutes too.