WordPress anagram finder-2

I need a search form (preferably the wp native) to be able to find pages/posts only if there is a word in their text made of all the letters searched independently of the sequence of the letters. This word is a single word and is always between the same two word. Posts/pages still need to be created so I can still insert tags, div, id if needed. For example if I search WLGO, or LWOG, or olgw, etc.... I will find in search results the following pages/posts: [login to view URL] [login to view URL] No result if I will only look only for WL, lwo, etc. The active child theme should be used.