Advanced search (exact phrase) requires the following parameters.

1-) + to include any given word.
2-) - to exclude any given word.
3-) ( ) to group the words.
4-) '' '' to search group of words.

Examples:

1-) Atom Nucleus: Lines in which either Atom or Nucleus are found.
2-) +Atom +Nucleus: Lines with both words.
3-) +Atom Nucleus: Lines with Atom. Additional results with lines that include Nucleus.
4-) +Atom - Nucleus: Lines with Atom, without Nucleus.
5-) Atom*: Lines with Atom, Atoms, Atom’s, Atom, Atomic.
6-) "Atom Nucleus": Lines with Atom Nucleus word group.
7-) +Atom +(Nucleus Man): Lines with Atom and with either Nucleus or Man.