weird g-metrics findings

As some of you may know, I have set up a site, g-metrics.com that keeps track of the googlecount of various queries (users can add their own). This way you can see how many results google would return for a cetrain keyword for example, and how this number changes from day to day.

The other day I was wondering arround g-metrics when I noticed something very weird. The graphs returned for "on-line" * betting and "sony ericsson" are identical!

For me this is very strange since the two queries re not related. Well obviously they are in some way. Any ideas?