In Find what(circled in red), type the characters or words you want to find.
Click Find Next(circled in green).
To find only text with uppercase and lowercase characters, as specified in Find what (Circled in red), select Match case(circled in purple).
You can specify which direction to search starting from the insertion point in the document. In Direction(Circled in indigo), click Up to search from the insertion point to the top. Click Down to search from the insertion point to the bottom.