I have a problem searching in a specific document. For some reason, the search function only seems to sift through certain fonts, or types of text. The main text is not included in the search, but rather only (for example) the Table of Contents and some "examples" (in a special font) in the text. Everything else is omitted.
When I copy/paste the main text, it's pasted as a strange code in this fashion, despite the fact that it's quite readable in it's original form:
This is probably the reason why Search can't find terms in the main text, as searchable text looks quite right when copy/pasted. But how can I solve the problem?