Twig file is not displaying data from the database

Currently, I'm using Laravel 5. I found out a lot of information how to connect laravel project with SQL database, so I'm sure I did it correctly, but when I'm trying to display my data - it doesn't work. Maybe somebody had the same problem if you know how to solve it - please tell! I'll be happy to solve this problem and also to correct your answer. Thank You!

My code:

<form role="form" method="post" action="search/result" id="search-form" class="hr-right">
                        <div class="form-group">
                            <label></label>
                            <select id="catList" name="category_id" class="form-control input-lg" required="required">
                            <option value="0"></option>
                            
                            </select>
                        </div>
                        <div class="form-group">
                            <label></label>
                            <div class="row">
                                <div class="col-xs-12">
                                    <select name="state_id" class="form-control input-lg" required="required">
                                    <option value="0"></option>
                                    
                                    </select>
                                </div>
                                <div class="col-xs-12 visible-xs">
                                    <br>
                                    <select name="county_id" class="form-control input-lg">
                                        <option value="" disabled></option>
                                    </select>
                                </div>
                            </div>
                        </div>
                        <hr>
                        <div class="form-group text-right">
                            <button type="submit" class="btn btn-lg btn-warning">
                                
                            </button>
                        </div>
                    </form>

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