condense vs put flesh on the bones of

condense

verb

To be transformed from a gaseous state into a liquid state.
To transform from a gaseous state into a liquid state via condensation.
To concentrate toward the essence by making more close, compact, or dense, thereby decreasing size or volume.

put flesh on the bones of

How often have the words condense and put flesh on the bones of occurred in a corpus of books? (source: Google Ngram Viewer )