si = CreateSearchIndex["ExampleData/Text", Method -> "TFIDF"];
Manipulate[Grid[sr = TextSearch[si, ToString[s]];
  {FileBaseName /@ Normal[Dataset[sr][All, "ReferenceLocation"]],
    Column[#, Frame -> All] & /@ sr[All, "Snippet"]} // Transpose,
  Frame -> All], {s, "tree"}]