Search TipsTags with spaces are represented with underscores, so instead of searching for BCB Art Meme, search for BCB_Art_Meme.You can search for images containing multiple tags, just use spaces to separate them. Sue Daisy will find pictures containing Sue and Daisy together.You can subtract tags from your search. Lucy -Mike finds pictures of Lucy without Mike in them.You can search for metadata like user (uploader), size (pixel dimensions), image ID, aspect ratio or file size. Examples of metadata searches: user=SuitCase, size=1024x768, id=1233, ratio<2:1 or filesize>=3MB.You can find images people have added as their favorites, like favorited_by=Taeshi.Finally, you can search by date. Try posted=2010-12-25 to see images posted on Christmas Day 2010.
Context is important
Chinese new year
The impenetrable bubble
Buried Treasure
P-Paulo, I… Umm… 
Hardly surprising