I need a program which takes some text (usually just a few lines) and files it under some keywords. Then, later on, I can search for all texts that have been filed under certain keywords.
For example, I may file the text "Dog" under the keyword "Animal", and I may file the text "Cat" under the keywords "Animal" and "Cute", and then later on, if I search for texts with the keyword "Animal" + "Cute", it should return the "Cat"-text, and nothing else (unless of course there are other texts with both these keywords saven with it).
Is there such a text editor? Can I somehow do it "manually" with Word or what have you (in an easy way, of course)?