Cortana Search does not find Windows Sticky Notes related searches

I'm using a windows 10 OS, and somehow its behaving differently when it comes to searches. Cortana able to find excel,word ect. but not anything that is noted on Windows Sticky notes. while confirming the sticky notes are actually included in the Index , I can not come up with a solution to make searches actually include sticky note files. Does anyone knows how to deal with this? Thank you all