You can limit search to your own questions by adding the
user: toggle. To search for one's own posts we can use
user:me. For posts of other users use
user:##### where the
##### is replaced by the user number of the user (you can find it out by hovering your mouse over the user's name card, the number is the first number that appears in the URL. For example, Martin Sleziak is user 8297).
Since it is a question, you can further limit the search to questions by using
is:question (as opposed to
Then you just need to add a few keywords. So for example, when I searched for
ordered cardinal choice user:42339 is:question
(user 42339 is you, the OP), I end up with this results page.
(On the search results page, there is a link to the right that says "Advanced Search Tips". You can click on it and see what other search options you can use to better filter your search results.)