How to enable searching through knowledge base titles and content

My users want to be able to search the knowledge base articles via the global search. Is this possible? I’ve tried adding this code below to my vardefs as described in an article I read but no dice.

“$dictionary[‘AOK_KnowledgeBase’][‘unified_search’] = true;”
“$dictionary[‘AOK_KnowledgeBase’][‘unified_search_default_enabled’] = true;”
“$dictionary[‘AOK_KnowledgeBase’][‘fields’][‘name’][‘unified_search’] = true;”

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