Dynamic web page physically doesn't exist on server as a static HTML page. Dynamic pages are generated when an user triggers an action through that particular page (generated on the fly). Search Engines aren't good at reading dynamic URL because Search engine usually considers dynamic website as group of never ending links. Now a days many webmasters are suggesting various type of solution for the same. But some important tips are listed below:
@ Create an HTML site map with all text links of your website.
@ Try to get deep inbound links from relevant sites to yours.
@ Convert your dynamic web pages into static web pages with the help of URL re-writing softwares.
@ Just create a static web page linking to all your dynamic web pages and optimized it for search engines.
