Perhaps you should try some spelling variations:
astronomy surveys » astronomy survey, astronomy surveying, astronomy survives
moocs practical » abcs practical, ics practical, metrics practical
moocs nautical » hoc nautical, logs nautical, nos nautical
mics practical » ics practical, micro practical, his practical

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 ((moocs nautical) OR (((moocs practical) OR (mics practical)))) astronomy surveys.
• The words AND, OR and NOT may confuse the search; try adding quotes: "the patrick ((moocs nautical) or (((moocs practical) OR (mics practical)))) astronomy surveys".
• Adding a wildcard symbol may retrieve word variants: the patrick ((moocs nautical) or (((moocs practical) OR (mics practical)))) astronomy surveys*.