Perhaps you should try some spelling variations:
"imaginary places" » "imaginary parts", "imaginary monies", "imaginary part"
"imaginary unit" » "imaginary part", "imaginary axis", "imaginary i"
"imaginary 2" » "imaginary _", "imaginary 3"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("imaginary unit") OR ("imaginary 2"))) OR ("imaginary places"))*.
• Removing quotes may allow a broader search: (((( imaginary unit ) or ( imaginary 2 ))) or ( imaginary places ))*.