I was doing some Keyword research for the UK (settings on United Kingdom - English) and I've noticed than
American spelling came out more often for some words than the British one - which is quite strange.
For example, I had more Search Volume for keywords containing the word "Odor" (US spelling) than "Odour" (UK spelling).
I don't really care about the spelling as I'm not doing this for a PPC campaign, I'm just curious about why is there more search volume with the US spelling in the UK? Did the keyword planner mix-up both countries?