The PDF exporter is right. It only displays what you requested.
The main issue is your overuse, abuse of direct formatting. Your document is highly structured. You’d benefit from following a strict semantic styling method.
The problem is you created a conflict between the usable space in your table cells and forcing manually paragraph indents. You end up with wider paragraphs than can fit in the cells and paragraph contents is clipped to the usable area.
Things are even made worse by the fact that initially your document was created under M$ Word (which may explain the importance of direct formatting) and many Word idiosyncrasies are still present (notably that strange clipping which can’t happen in any correctly designed Writer document).
My best advice is to suggest to restart from scratch, pasting your present contents as Unformatted Text in a blank document and to style this very rigorously.
You have no reason to create one table per page. Writer tables can span several pages and column headings are automatically repeated at top of every page.
Recommended reading: Writer Guide, notably the chapters about styles.