An expert who studies or works in one of the sciences is called a  scientistexceltwicepersisteducationresearch.

The process of teaching or learning is called  researcheducationscientistexceltwicepersist.

The process of finding information, a place, or an object is called  researchexcelpersisteducationscientisttwice.

Two times can be expressed with the word  excelpersistscientisteducationresearchtwice.

When you are extremely good at something, you  twiceeducationresearchscientistexcelpersist.

When you keep doing something without stopping, you  researchexceltwiceeducationpersistscientist.