There are various anagram programs that will try to make words or phrases from 'scrambled' letters. If you have Linux, Mac OS, or any unix based OS, there is 'an', the anagram generator. Since it has a CLI, you can put it to work with grep, giving you some powerful tools for attacking word puzzles of all kinds.
If you use Windows, look wherever you would normally find share, and freeware. Search for 'anagram'.
The word game "Scramble" is a variant of the enduring game "Scrabble" and is basically a words search grid. One can create one's own Scramble game online at discoveryeducation, armoredpenguin or puzzle-maker amongst others.
Search "French anagrams" and look for A2zwordfinder near the top.
http://wordsmith.org/anagram/
One such site is wolframalpha.com
Yes there is.
http://www.zachwordunscrambler.com/
Import
The letters 'iveco' unscramble to spell the word voice. This is the only possible anagram for these letters.
The letters 'avnicce' unscramble to spell the word vaccine.The next possible longest word is naive with five letters.
Those letters spell spaghetti.
It is unlikely that these letters form a word.
The letters 'ehcealrihw' unscramble to spell the word wheelchair.The next longest possible word at eight letters is leachier.
Those letters spell scurried.
Those letters spell carnival.
Hoopla.
The letters unscramble into two words:CorkyRocky