The search phase is the most "intuitive" one, in a sense that it leverages user interface paradigms that are already widespread thanks to web search engines such as Google or Bing, and also thanks for ecommerce search engines such as eBay or Amazon. We explain briefly here the different capabilities that Datafari exposes, thanks to the graphical framework Ajaxfrancelabs, and of course thanks to the Apache Solr engine working behind the scene.
The first page you see when you use the search functionnality, is a simple search bar. Start typing text in it, and the autocomplete automatically starts proposing you terms that are present in the search index, ranked by "relevance" (the relevance here being mainly correlated to the terms frequency in the corpus). You can either continue typing, or at any point in time you can click on one of the proposed term. The autocomplete by default is a term by term autocomplete. If you select a term, and type a whitespace and start typing a second term, the autocomplete will work on the second term.
Once you've clicked the search icon, the display takes you to the search result page. This page is composed as follows: on the upper part, you get the standard search bar. On the left, you get the default facets to filter and navigate through the results. And on the right, you get the list of results ranked by relevance, related to the query terms. These panels use defaults views, and you can refer to the Ajaxfrancelabs framework documentation if you want to modify the display. The deeper the modifications, the more probable it is that you will need to modify also the configuration of the Solr of Datafari, in which case you should refer to the standard Apache Solr documentation.