You can use the "Filter" option to filter the job list by a number of criteria. First, select a date range, then select the "Jobs" report (or "Completed" report). Then you can filter the result by adding a search term into the filter box. Examples to search are:

You can also search by more than one criteria using the advanced filter search. If you add a space in the filter, the results will be filtered for all words separately. And if you put a word in quotes, it will have to match exactly. For example, a filter of Bloggs "GEN 1" Fibre will return all jobs for Bloggs with a GEN 1 mix and fibres.