Restangular query with filters

I have an error with my query using Restangular that is not returning my filtered data. I've tried all the below:

$scope.welcomes = Restangular.all("projects").getList({'name': "g"}).$object;
$scope.welcomes = Restangular.all("projects").customGET("findOne", {"filter[where][title]": "g"});
 $scope.welcomes = Restangular.one("projects").customGET({name: "g"});
 $scope.welcomes = Restangular.all("projects").customGET({name: "g"});

I really appreciate if you have any advice to share.