Forms :: Record Navigation Button

I am using Access 2007 and am a former user of an old flat-file 32 bit program under Windows 3.x. I am fairly new to MS Access 2007. I run a filter or query, which will return X number of records. Then, I will search those X records by specific text, such as "assist" from the record navigation buttons. I search for "assist" and the text will be highlighted each time it is found in any text or memo field in the record. Hitting Enter takes me to the next occurrence and highlights the text. If "assist" occurs in 4 fields in a record, for instance, it will be highlighted in each of those 4 fields one by one as I hit Enter. The next Enter takes me to the next record and will then continue to the next occurrence of assist" in any of its fields. It will continue to highlight "assist" in those fields, in succession, until the last occurrence in all of those records is found, in which case Enter does not return "assist" anymore because the last occurrence has already been found.

This does not always work. Often, I get every occurrence of "assist," but in the current record only, even though the word exists in other remaining records that were returned with my original filters/query.