Use the following tips to optimize your searches:

Enter words to find images that have at least one of the words:

spotted bat

Use "+" to find images that contain both words:

+spotted +bat

Find images that contain the word "spotted" but rank the results higher if they have the word "bat" too:

+spotted bat

Use "-" to find images that contain "spotted" but not "bat"

+spotted -bat

Find images that start with "spot" -- e.g. "spotted," "spotting"

spot*