Title search finds titles that start with the words you type in.
It's good to use it when you are looking for a one- or two-word title.
Type as much or as little of the title as you want. It will find all titles - books, journals, music, etc, but not journal article titles, or the titles of book chapters.
If you can't find something by title, always double-check by doing a different kind of search, such as author or keyword.
Or, if the title starts with a word which may be a definite or indefinite article in another language (like "the" and "a" or "an" in English), then do a title search but type the first word twice. eg
I I was born Greek would find this book in a title search, whereas I was born Greek fails.
As with all the other search types use the Limit dropdown to eliminate print results if you want electronic only.