This is a program to find words that contains supplied letters or ranges of letters(asf/d-g/k-n/xyz expands to "asfdefgklmnxyz"). You can specify the length of word. You can also specify characaters that must be at specified position.
You can also submit missing/new words from Help>Submit missing words
You can also go to http://gulsanbc.000webhostapp.com/findwords.php?words to get the list of all words submitted by users of this app.
Alternative downloads: If you prefer .deb packages, you can get FindWords.deb(693 KB) from here https://gulsanbc.000webhostapp.com/apps.php?id=1