Perhaps you should try some spelling variations:
"coder coder based learning objects" » "coder coder and learning objects" (Expand search), "coder decoder based learning objects" (Expand search), "code code based learning objects" (Expand search), "decoder codec based learning objects" (Expand search), "coder code based learning objects" (Expand search), "coder foder based learning objects" (Expand search), "coder codec based learning objects" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python python programming" (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder based learning objects\") OR (\"_ python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder based learning objects ) OR ( _ python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder based learning objects") OR ("_ python python python programming"))*.