Hi Sandi,
Google doesn’t always use the HTML title tag of a web page, choosing instead to make its own title for a page, if it thinks it can do a better job.
Google's generation of page titles and descriptions (or "snippets") is completely automated and takes into account both the content of a page as well as references to it that appear on the web. The goal of the snippet and title is to best represent and describe each result and explain how it relates to the user's query.
To know more on this please watch this video @ https://www.youtube.com/watch?v=L3HX_8BAhB4
Hope this helps.
Thanks