Bonjour uyoob,
Your previous experience in France does not open your rights directly, but if you had a social security number at that time, it can be reopened.
In order to have a coverage with the French health care system, you must have 3 months of permanent residency in the country. After this waiting time, if you are not working you can apply for a social security number.
More details are available on these topics named : "How to be covered if I am not working and I am a non-European citizen ?" and "How to be covered if I am not working and I am a European citizen ?".
If you already have a work contract, look at this topic entitled : "How to be covered if I am working with a French contract ?". The difference is that when you work in France, you do not have the waiting period.
Have a nice day.
