      mots  occurence  ...                           id_formation source_field
0  startup          1  ...  \nlever-des-fonds-pour-ma-startup\n-2        title
1     fond          1  ...  \nlever-des-fonds-pour-ma-startup\n-2        title
2    lever          1  ...  \nlever-des-fonds-pour-ma-startup\n-2        title

[3 rows x 5 columns]