A friend was looking for a certain piece of land.

I do not like being tied to a certain piece of work.

Only certain pieces can move to and from the additional level.

A certain piece of knowledge has come to me which I thought is essential we should share.

Iran has been sitting on certain piece of land for more than 2500 years and is not going to go any where.

There are also certain pieces of art that must fall to your share.

Perhaps a certain piece of information had not been kept entirely secret after all.

"There are certain pieces of work that simply don't leave you alone," he said.

Their greatest power is often the ability to force a government to reveal certain pieces of information.

On the Caribbean island, there was a certain piece of property.