Search inside handwritten PDF (Imported from GoodNote)

Text Extractor is extracting the below text from the PDF, which means it’s working but not accurate.

But I am surprised that it’s not using embedded text or maybe unable to read the embedded text properly.

I am attaching the test PDF here for reference.
Time Series.zip (722.9 KB)

I have used this tool to find embedded text in pdf. FREE PDF Documents analyser