The Find toolbar is a quick way to find strings of text and objects in a document.
There is, however, a more advanced way to search for text in a document.
The Find and Replace dialog allows you to search text strings based on certain characteristics, such as its capitalization or color.

It has a find text field and a replace one. There are numerous settings for replacing text. Clicking Other options reveals more settings for more controls on how strings of characters are found and replaced.
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