Possible to query partial meta value?

Hi.

I have 100+ custom posts with custom fields, and some of them are like :

key1 => ‘name1, name2’
key2 => ‘name2’

Is there any way to query posts which include ‘name1’ in some meta key?
I know that I can query ‘meta_value’=’name1, name2’ or ‘meta_key’=’key2’, ‘meta_value’=’name2’ but ‘meta_value’=’name1’ doesn’t seem to show me that post. Any help?

Thanks in advance.