I get the following search queries from SharePoint admin center - [Search] - [View Usage Reports] - [Search Reports].

and(EditorOwsUser:"i:0#.f|membership|user@domain.com", and(not(HideFromDelve:"1"), not(OnHold:"1"), not(Path:"tag://public/?NAME="), or(FileExtension:or(aspx, html, htm), SecondaryFileExtension:or(aspx, html, htm), FileType:or(aspx, html, htm), ContentTypeId:0x010100DA3A7E6E3DB34DFF8FDEDE1F4EBAF95D), not(or(ContentClass:or(STSListItem850, STSListItemWebPageLibrary, STSListItemLinks, STSListItemTasks, STSListItemTasksWithTimelineAndHierarchy, STSListItemGanttTasks, STSListItemEvents, STSListItemAnnouncements, STSListItemContacts, STSListItemSurvey, STSListItemDiscussionBoard, STSListItemIssueTracking, STSListItemXMLForm, STSListItemPosts, STSListItemComments, STS_Web), FileExtension:or(xlsx, xls, xlb, xlc, xlsb, xlsm, xlt, odc, ods, pptx, ppt, pot, ppa, pps, pptm, odp, ppsx, ppsm, potx, potm, docx, doc, docm, dot, dotx, odt, dotm, avi, asf, mp4, mov, mpg, 3g2, 3gp, asx, wmv, mpeg, pdf, one, onepkg, xsf, xsn, vsd, vsdx, vss, vst, vdx, vtx, vsx, vstx, vssm, vdw,

I would like to know what users performing are, but I think that the complex queries are not very usable.
If administrator cannot use this for analysis, please remove from search reports.