Hi!
Sure – I will help you as much as I can.
The generic theme for that search is this one. After selection the search input should look very similar to that. For keyword suggestions (below the search bar) go here.
Then about the filters
– In that example I have set the to be a block and visible at all time: https://i.imgur.com/bRz15e4.png
– Then depending on the case, I suspect you want taxonomy term filters. For that we selected the category and the blog_category taxonomies. If you click the display mode button, the labels, states etc.. can be changed.
To have separate filter boxes (one for Company, one for Location similarly to us having the Example Categories and the Blog categories) they should be separate custom taxonomies. It’s generally a good practice to have taxonomy separation between very distinctive categorization criteria. In case you don’t have that yet, I highly recommend to create taxonomies for them.
That’s basically it 🙂