var searchParam = new MultiFieldSearchParam()
{
    Database = Sitecore.Context.Database.Name,
    Language = Sitecore.Context.Language.Name,
    TemplateIds = "{E5B41848-3C07-4F17-84A5-C2C29AD43CAE}|{0C2E35D7-C4C9-478B-B4AB-DE8C2A00908B}"
};
var refinements = new List<MultiFieldSearchParam.Refinement>();
refinements.Add(new MultiFieldSearchParam.Refinement("pages", contextItemGUID));
searchParam.Refinements = refinements;

var runner = new QueryRunner("web");
foreach (var skinnyItem in runner.GetItems(searchParam))
{
    yield return skinnyItem.GetItem();
}