Aspects retrieve, organize and display different classifications of sets of search results in different, respective tabbed sheets that are nested on top of one another in a web-based interface dashboard. A text string search query is classified into constituent primary search terms that are likely to return satisfactory search results as indicated by retrieved search history data as a function of search resources and language classification rules associated with the user identity indicia. Secondary search terms related to the primary search terms and including synonyms and antonyms are determined as substitutes for the primary search terms in response to search history indicating follow-up searches immediately subsequent to searches of the primary search terms at less than a specified threshold of frequency. The set of peripheral knowledge article results is generated by searching knowledge article resources for background information on the primary search terms or the secondary search terms.