Your query produced more than 1000 results. Repeat query and allow more results. Note: the shown results are incomplete and do not reflect the sort order

If it’s just a one-time action: did you try to click on the “Repeat query and allow more results” link?

Otherweise search for “query limit” in Setup > General > Global settings

soft_query_limit: Whenever the number of returned datasets of a view would exceed this limit, a warning is being displayed and no further data is being shown. A normal user can override this limit with one mouse click.
hard_query_limit: Whenever the number of returned datasets of a view would exceed this limit, an error message is shown. The normal user cannot override the hard limit. The purpose of the hard limit is to secure the server against useless queries with huge result sets.

Use with care.