Best of all, the book is both hopeful and smart, a rare combination.

The larger one has weight, but almost no bulk - a rare combination.

Beauty and brains in a wife is a rare combination.

"It is a rare combination of social justice and trade coming together."

"I'm not sure what the appropriate protocol is for such a rare combination of forces."

It's a right rare combination what could work together, he says.

He hit the ball high, generated enormous power and had very good control as well, a rare combination.

Where else could I hope to find so rare a combination of excellence and beauty?

He asked for a wife with blond hair and blue eyes, a rare combination in Syria.

With so many changes elsewhere in the world these days, that's a rare combination.