The Search (and Filter) parameters do not provide a way to search for an exact word (e.g. to isolate instances of a word like "form" from appearances within other words like "transform"). Likewise, multiple words are searched in any order, confusing attempts to search for an exact phrase ("over and above" will also match "above the door and overlooking the road").
Would like to see behavior like Google or Outlook search, where a quoted term indicates an exact search.
(The problem is a minor one, but amplifies as note collections get larger and more false hits occur)