Multiple dropdown search for multiple custom taxonomies on Wordpress -

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I'm trying every code that I can find on the Internet, 4.0 I have created custom taxonomies.

I am creating an education directory and want to achieve something like this:

Country (& lt; - Custom classification)

Select country -
- USA (& lt; - word)
- United Kingdom
- ....

Select qualification - Choose qualifications -
- Bachelor
- Master - - .... ....

Major

- Choose Ability -
- Business
- Science
-.

[submit button]

For example, if someone searches for "USA" "Bachelor" and "Science" And submits, it will display all the posts that are tagged in the words.

If any "USA" searches "Bachelor" and leaves Major blank, then it will display all the posts tagged in "USA" and "Bachelor".

I appreciate your help! Thanks!


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