Perhaps you should try some spelling variations:
computational astrophysics » computational biophysics, computational physics, observational astrophysics
computational physical » computational physics, computation physical, computational biophysical
mathematical » mathematics

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: mathematical AND ((computational astrophysics) OR (computational physical)).
• Adding a wildcard symbol may retrieve word variants: mathematical and ((computational astrophysics) or (computational physical))*.