裏には裏がある。

The reverse side has a reverse side.

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English Translation

There are wheels within wheels.

@Cloze2Kyoto
Sorry to say, but the original English translation is much better than your proposed alternative.
裏には裏がある is a frequent idiom, meaning there are or could be much deeper secrets or more complicated maneuvers behind a certain situation/scheme. The English idiom “wheels within wheels” also has the same meaning of “complexity” but yours doesn’t.