code: public ServerFilter descriptionContains(String... subStrings) {
          allItemsNotNull(subStrings, "Description keywords");
  
          predicate = predicate.and(combine(
              ServerMetadata::getDescription, in(asList(subStrings), Predicates::containsIgnoreCase)
          ));
  
          return this;
      }
docs: Method allow to find server that description contains one of specified keywords.
  Matching is case insensitive.
  
  @param subStrings is list of not null keywords
  @return {@link ServerFilter}