Click on the ordinance to open the PDF file in a separate window.
Click on the Search button at the top of the document. This will open a search box.
Type in the key word or words you are searching for to have Acrobat Reader find those words in the document.
Acrobat will display the number of times your key words have been located along with a list of results at the bottom of the search area. Click on the result to go directly to that part of the ordinances document.