Unfortunately Google API doesn't support all possible languages. Soon you'll be able to make your own questions, and hopefully that will solve a problem.

You can recover the purchsed unlimited games in "settings"

The "history" shows only games that you created yourself. Use "share" the game results (currently support Twitter and Facebook) to share the game results.

Game results are saved on the server as a static web pages. It is up to you to share the game results. The game results doesn't disclose the personal details of participated in the game.