Perhaps you should try some spelling variations:
"coder coding coding image descriptors" » "coder coding coding image descriptor" (Expand search), "coder coding coding shape descriptors" (Expand search), "coder coding coding image description" (Expand search), "coder coding decoding image descriptors" (Expand search), "coder coding using image descriptors" (Expand search), "coder coding canine image descriptors" (Expand search), "modern coding coding image descriptors" (Expand search), "color coding coding image descriptors" (Expand search), "odor coding coding image descriptors" (Expand search), "coder coding moving image descriptors" (Expand search), "coder coding decoding images descriptors" (Expand search), "coder coding counting image descriptors" (Expand search)
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ python programming" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coding coding image descriptors") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding coding image descriptors\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding coding image descriptors ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding coding image descriptors") OR ("on python python python programming"))*.