Yes there is.
For example I'll take the mylinks module.
Open the file:
xoops_version.php from the mylinks module and look for the code:
// Search
$modversion['hasSearch'] = 1;
$modversion['search']['file'] = "include/search.inc.php";
$modversion['search']['func'] = "mylinks_search";
By changing:
$modversion['hasSearch'] = [b]0[/b];
this module will be excluded from being searched and shown within the advanced search option.
not. working
not working for isearch module in XOOPS 2.018rc1
https://xoops.org/modules/newbb/viewtopic.php?post_id=283632#forumpost283632