ThisbachelorthesisdescribesthesearchenginedevelopmentfortheSlovakInternet.ItdescribestheprocessingofthetextfromthewebpagesoftheSlovakInternet and its subsequent indexing in the used search engine Elasticsearch. It outlines the advantages, disadvantages of this search engine as well as communication and work with it. Next, it deals with current methods of searching in text data and methods of evaluation of searching accuracy.