in a situation where you have an
((or or or) AND (or or or))
you can do something like this:
{{host}}/api/blog?sort=publishedAt%3Adesc
&populate=Tags.tags
&populate=Image
&pagination[page]=1
&pagination[pageSize]=25
&locale=en
&filters[$and][0][$or][0][title][$containsi]=important
&filters[$and][0][$or][1][introduction][$containsi]=important
&filters[$and][0][$or][2][body][$containsi]=important
&filters[$and][1][$or][0][tags][$containsi]=JAVA
&filters[$and][1][$or][1][tags][$containsi]=BE
&filters[$and][1][$or][2][tags][$containsi]=FE
&filters[$and][1][$or][3][tags][$containsi]=PYTHON
&filters[$and][1][$or][4][Tags][$containsi]=JAKARTAEE
&filters[$and][1][$or][5][Tags][$containsi]=SPRING
where [$and][0] or [$and][1] tells in what group the AND belongs and [$or][0] the OR in the AND group
It actually does make sense if you know how it works but OMG it took me forever to find this out. The documentation is not great in explaining this. It actually does not explain it at all 