Perhaps you should try some spelling variations:
astronomy survives » astronomy survey, astronomy surveys, astronomy studies
astronomy sergey » astronomy survey, astronomy surveys, astronomy seven
bond practical » bonds practical, bono practical, beyond practical
patrick bond » patrick d, patrick b, patrick d.d

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 bond practical ((astronomy survives) OR (astronomy sergey)).
• Adding a wildcard symbol may retrieve word variants: the patrick bond practical ((astronomy survives) or (astronomy sergey))*.