When everything looks alike the exceptions stand out don't they? Especially with clones. Apparently Luke fails to meet the minimum height criteria and this is the first thing Princess Leia latches onto... Seriously?
It's different with documents. What distinguishes my current project spreadsheet from all the other project spreadsheets I ever created? What about when they are sitting in the document repository with thousands of other spreadsheets. It's not as obvious as a badly fitting Stormtrooper outfit but just like Leia, knowing the differences to look out for is important.Unless it is a duplicate, each document has it's own unique identity composed of metadata. In fact even dupes will have different creation dates. This metadata can be used to filter a search so that it is quite precise.
It all sounds very scientific but typically you know 3 things about what you are looking for that when combined properly, make finding it much easier. These may be the creation date, which does not need to be exact, part of the title (assuming you gave it a decent name of course), the author or the document format as in word excel etc. Only a small selection of documents will share these combined characteristics.
So next time you google, try the advanced search and see if you can get the precise results without the noise. While you're at it, you may want to look up escape plans and handy advice for removing tracking devices from spacecraft...