As of now, the Auto-translation Dictionary is still using autocomplete, meaning it predicts a word or phrase that the user wants to type by completing the letters preceding it, the same way it was done in FFXI.

The trouble I usually run into with autocomplete is not remembering the exact predefined phrases.

For example "Let's play together again sometime!" is one that I often forget that it starts with 'Let's'. However, I do remember the words in the phrase itself more clearly than the starting word or order of words of the phrase itself;
Such as 'play again' or 'together sometime' which could possible form a valid phrase such as 'Let's play again together sometime'.

Another example "I had fun today";
I often remember the word 'fun' but rarely the phrase at all. Such that I would attempt typing 'That was fun', 'It's been fun', 'Today was fun', so on and so forth.

You might see where I'm getting at here.

It would be nice if it searches strings as a whole instead of only autocompleting the initial letters.

Such as typing 'fun' would give the results of "Fun", "Function Keys", "I had fun today" or any other phrases such as "Please use the auto-translate function" that satisfies the regex of something similar to *\bfun*