Drupal search does not index all nodes?

I created many nodes (Drupal 6.2x) by using script to directly insert content into the database. The nodes themselves contain php script to get content from a database table. All node show up as expected, and all node titles are searchable. But, the content of most of the nodes are not searchable. However, some of the nodes content is searchable. I have done most of the suggested troubleshooting (clear cache, run cron manually, see if php is failing, solving cron issues, does not index my custom nodes! et开发者_运维技巧c) with no success. All suggestions are welcome. Most of the site is done, and full search is critical for release. Thank you.

I usually have similar issues with Drupal search, this module tends to fix most of the problems:

http://drupal.org/project/fuzzysearch