$tax_query = array( 'relation' => 'OR', array( 'taxonomy' => 'ZYXPLUG_TAX1', 'terms' => '$terms_tax1', 'field' => 'slug', 'operator' => 'IN', ), array( 'taxonomy' => 'ZYXPLUG_TAX2', 'terms' => '$terms_tax2', 'field' => 'slug', 'operator' => 'IN', ), array( 'taxonomy' => 'ZYXPLUG_TAX3', 'terms' => '$term_tax3', 'field' => 'slug', 'operator' => 'IN', ), array( 'taxonomy' => 'ZYXPLUG_TAX4', 'terms' => '$term_tax4', 'field' => 'slug', 'operator' => 'IN', ), );