I have a website ranking pretty high for all variations of widgets, all of them are low search volume and low competition keywords.
There is this strange thing I don't understand though. The site ranks #2 for "blue widgets" (without quotes) with the most relevant, blue widgets page, showing. However, when searching for the singular form "blue widget", the blue widgets page is nowhere to be found, and the homepage ranks near the position #150 !
Now, the singular form phrase certainly appears on the page few times, and I am quite sure overoptimization is not an issue either - nor on-page, neither in the incoming links anchors.
Are there any ideas what may cause this issue?
Thanks for your help.