Help - Connects 3 collections in a databaseHello

I want to create a website for my placement company that will display jobs from a database that my workers will fill.
I want the surfers have 3 search options - search by region (using Dropdown), search by job type (using Dropdown), and free search by entering free text.
On the homepage I would like to have all 3 search options below:
free text field search by jobstype (dropdown) search by area (dropdown)
• If the user searches by region, he or she will receive all the results of that region.
• If the user searches by job type, he will receive all the results of the same job, in all areas.
So far I have created 3 collections - jobs, area and type of work. In the Job Portfolio I put 2 reference columns. I also created 3 static pages, one for each collection.
My question is, how do I create a situation in which I can search according to what I have presented above.
Thank you so much,
Elad
p.s.
I watched all your YouTube videos on the subject. I need another explanation from you.

Hey Elad,

Have you checked out this video?
I think that’s exactly what you’re looking for - filtering datasets using a text field and a dropdown.
Alternatively, if you’re not using datasets (and using wixData directly) check out this article.

Good Luck,
Itai

Hey,
I know this video.
I looking for sulation without use a code.
Adition, this video discribe only 1 level of sorting,and i need 2 levels of sorting (area and jobtype and oposite).