Perhaps you should try some spelling variations:
practical astronomy » nautical astronomy, optical astronomy, positional astronomy
astronomy survives » astronomy survey, astronomy surveys, astronomy studies
mpondo practical » upon practical, bonds practical, bono practical
colts practical » its practical, politics practical, results practical
patrick mpondo » patricia opondo, patrick bond, patrick mons
patrick colts » patrick colm, patrick bolton, patrick count

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