Perhaps you should try some spelling variations:
autonomic services » autonomic service, autonomous services, autonomic nerves
astronomy survey » astronomy surveys, astronomy sergey, autonomy survey
based practical » based practice, based practices, added practical
patrick based » patrick case, patrick bayer, patrick baker

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: the patrick based practical ((autonomic services) OR (astronomy survey))*.