3.0.1 giving more results than 3.2.1

[xauxatz]

I'm using this in one of my apps and I've had a strange error for several weeks.
On my development PC with certain searches I get more results than I do on my production server.
The only difference is the version of node-bing-api:
3.0.1 on my development PC
3.2.1 on my production server
When I change the version to the same, I get the same results.
The specific search is related to using + or %2B in the search - and also related to searching into specific domains with the site: operator.
I've been forced to roll back to v. 3.0.1 to get the best results.

[goferito]

My access key is expired, I would need to issue a new one. If you need it fixed quick it would be better if you make a PR for this. I don't have much time at the moment.