Find word at caret
This command lets you find occurrences of the current word independently on its structural meaning — it can be anything in your document: an identifier or a keyword in the code, a word in a string literal or a comment, an XML tag or attribute, or even a number. If any matches are found, you can quickly navigate between them.
Note that this command is case-sensitive.
Select Edit | Find | Next Occurrence of the Word at Caret from the main menu.
Press F3 to go to the next occurrence.
Press ShiftF3 to go to the previous occurrence.