The search function in the template manager (see screenshot) does only find *filenames* that *start* with exactly the search term. First, it would be nice, if a template would also be found, if the search term occurs *inside* the filename and not only at the beginning. Second, it would be very comfortable, if the search term would not only be searched for in *filenames* but also in document properties (metadata).
Created attachment 95177 [details] A screenshot of the template manager.
Resolved here https://gerrit.libreoffice.org/#/c/25249/
just retried with Version: 5.1.4.2 (x64) Build-ID: f99d75f39f1c57ebdd7ffc5f42867c12031db97a CPU-Threads: 2; BS-Version: Windows 6.1; UI-Render: Standard; Gebietsschema: de-DE (de_DE) and the bug still (or again) exists as described above - so REOPENED.
This has been fixed in the new template manager introduced in 5.2, which wont be there in 5.1.