in api/search.js [258:267]
function searchIndex(indexArray, category, nameFunc) {
var primaryResults = searchIndexWithMatcher(indexArray, camelCaseMatcher, category, nameFunc);
result = result.concat(primaryResults);
if (primaryResults.length <= MIN_RESULTS && !camelCaseMatcher.ignoreCase) {
var secondaryResults = searchIndexWithMatcher(indexArray, fallbackMatcher, category, nameFunc);
result = result.concat(secondaryResults.filter(function (item) {
return primaryResults.indexOf(item) === -1;
}));
}
}