Several filter expressions in iReport 2.0.0

[makroll10]

Hello, I would like to define two or more filter expressions in my report.

For example: I only need the data records with "string1" or "string2".

In Case of only one filter expression, like this: $F{AbleKey.Qualificationid.contains("string1"), it works.

With two filter expressions like this: $F{AbleKey.Qualificationid.contains("string1") or $F{AbleKey.Qualificationid.contains("string2").

It doesn't work.

Who knows the correct syntax? What's wrong?

Markus