Exclude modules from search results FEU and CustomContent / Calendar

[Decorsign]

Hello,

I am struggeling with the search module in a Frontenduser/CustomContent intergrated webpage.
When i search (and not logged in) it shows results of the module, witch is only used for members.

The calendar module for example does not show up in de frontpage, but when i search, it shows results from the calendar.
Is it possible to exclude modules, so that they are not shown?

Or is there an other solution?

Thanx!