How to programmatically add where clauses to query?

I have this query..

        $docs = DB::table('docs_text')
           ->select(['documents.id', 'documents.filename', 'documents.extension', 'documents.description', 'documents.created_at', 'documents.url'])
           ->join('documents as documents', 'docs_text.doc_id' ,"=", 'documents.id' )
           ->where('doc_text','like',"%$firstKeyword%")
           ->groupBy(['documents.id', 'documents.filename', 'documents.extension', 'documents.description', 'documents.created_at', 'documents.url'])
           ->orderBy("created_at")
           ->get();

What I need to do is if I have more keywords I want to programmatically add

andWhere('doc_text','like',"%$keywords[$idx]%");

Not sure how to do this. Do i have to create a raw sql?

Thanks for any help

$keywords = ['keyword1', 'keyword2', 'keyword3']; // Your array of keywords

$docs = DB::table('docs_text')
    ->select(['documents.id', 'documents.filename', 'documents.extension', 'documents.description', 'documents.created_at', 'documents.url'])
    ->join('documents as documents', 'docs_text.doc_id', "=", 'documents.id')
    ->where(function ($query) use ($keywords) {
        foreach ($keywords as $keyword) {
            $query->orWhere('doc_text', 'like', "%{$keyword}%");
        }
    })
    ->groupBy(['documents.id', 'documents.filename', 'documents.extension', 'documents.description', 'documents.created_at', 'documents.url'])
    ->orderBy("created_at")
    ->get();

I've changed the code by swapping out where with orWhere inside the loop. This way, the documents will be matched if they contain any of the keywords.