If you want flipkart like search use this - I have used above jsfiddle code and modified it.

**html -**

<div ng-app="myapp" ng-controller="myctrl">
    <input type="text" ng-model="filter_text">
    <ul>
        <li ng-repeat="item in items | myfilter:filter_text">
            {{item}}
        </li>
        
    </ul>
</div> 

**Filter.js**

angular.module('myapp', []).filter('myfilter', function($filter){
    return function(input, text){
     var filteredArray=[];
     var filteredArray1=[];
     var filteredArray2=[];
        filteredArray = $filter('filter')(input,text);
        for(var k=0;k<filteredArray.length; k++){
            if (filteredArray[k].match("^"+text)) {
                         filteredArray1.push(filteredArray[k]);
                    }else{
            filteredArray2.push(filteredArray[k]);
          }
        }
        
          
       return filteredArray1.concat(filteredArray2)
    };
});

**Controller.js**

function myctrl($scope){
    $scope.filter_text = 'a';
    $scope.items = [
        'abc',
        'bca',
        'baby ama',
        'amazon','zon','zoom'
    ];
}

If you want Flipkart-like search use this. I have used the above jsfiddle code and modified it:

HTML:

<div ng-app="myapp" ng-controller="myctrl">
    <input type="text" ng-model="filter_text">
    <ul>
        <li ng-repeat="item in items | myfilter:filter_text">
            {{item}}
        </li>
        
    </ul>
</div> 

Filter.js:

angular.module('myapp', []).filter('myfilter', function($filter){
    return function(input, text){
     var filteredArray=[];
     var filteredArray1=[];
     var filteredArray2=[];
        filteredArray = $filter('filter')(input,text);
        for(var k=0;k<filteredArray.length; k++){
            if (filteredArray[k].match("^"+text)) {
                         filteredArray1.push(filteredArray[k]);
                    }else{
            filteredArray2.push(filteredArray[k]);
          }
        }
        
          
       return filteredArray1.concat(filteredArray2)
    };
});

Controller.js:

function myctrl($scope){
    $scope.filter_text = 'a';
    $scope.items = [
        'abc',
        'bca',
        'baby ama',
        'amazon','zon','zoom'
    ];
}