Something which is few and far between is scarce or difficult to come by. Something which is few and far between is a rarity, infrequent or uncommon.

1. Sunny days have been few and far between this summer. It's been miserable!
2. Rental apartments are few and far between in the city at the moment. Let me know if you come across something.

1. Opportunities for promotion at the company are few and far between, so I'm thinking of applying for a job elsewhere.
2. There were plenty of us at the brainstorming session, but we were all so tired that good ideas were few and far between.