SearchInform is an application designed for quick information search in large data volume, among documents of any types, as well as in various databases. The program combines the functionality of phrasal search with proper consideration for stemming and synonyms dictionary and the new SoftInform Search Technology of searching for documents of similar content. The application is designed for searching in large data volumes and increases the quality of information processing and decreases the searching time. The search speed is approximately three times as high as that of all the existent search systems. To make search more specific, SearchInform enables the “important words” function, which will be regarded of priority relevance by the application, when conducting additional similarity analysis.