I have recently implemented Simple Search in my app and noticed that within the scope of the searchable fields I defined, it sometimes either does not return a search result that I know contains the phrase I was looking for or only returns some of the results. Because these errors always occur in the same way (the set of the same malformed search results is returned for the same phrase regardless of the device), I think it's not caused by the deficiency of the device I am testing it on, but rather either some specific errors (character coding?) within the strings or some other config issue.
Has anyone ever encountered similar issues?