Not the hole document searched? Is there a limit?

I’m using AjaxSearch 1.9.2 and MODX 1.0.5 with this call: [!AjaxSearch? &parents=`43` &depth=`1`!]

The search works, I get some output. But I don’t get all the results from a tv (text) which contains a lot of numbers and words (about 5500, 36500 bytes).
Changing the time limit to 0 didn’t solve my problem. Only a few word/numbers (about 250) are searched and listed as results.

Any ideas what I can do?
Thanks.

If someone is interested in the solution (or workaraound), I post here the solution found in the german forum.

If I put all the text and numbers in the content (the standard content), AjaxSearch searches all the text without any limit.
It seems therefore to be a limitation the tvs have.