SAP UI5 Search Function without filtering

I want to implement a functionality to be able to search a word and find it everywhere in my application (actually just something like ctrl+f functionality of modern browsers)

I digged a lot but everything I found from UI5 API and Samples were about how to Filter the results. I don't want to filter the results, just want to find all matching words that exist in that page. How can I implement it ? Is there any samples that I couldn't find , which will help me to do the thing I need to do ?

var searchField = new sap.m.SearchField({
    placeholder:'search here',
    search: [oController.searchFn,oController]

And controller :

searchFn: function(){ // TODO };