Why is it that search engines behave differently when you're using a mobile device versus a computer? I get far better results using a computer. On the mobile device the meta characters don't seem to work very well. For instance, I will use a minus sign to exclude a word or phrase and a whole lot of the results come back with that word or phrase in them. All you're doing is sending a string up to the cloud where the lookup occurs. What's the difference between sending a string from a mobile device or a computer?