Perhaps you should try some spelling variations:
"coder coder competence learning objects" » "coder coder competence training objects" (Expand search), "coder coder competence teaching objects" (Expand search), "coder coder conference learning objects" (Expand search), "coder core competence learning objects" (Expand search), "coder under competence learning objects" (Expand search), "coder reader competence learning objects" (Expand search), "coder decoder competence learning objects" (Expand search), "code code competence learning objects" (Expand search), "decoder codec competence learning objects" (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 coder competence learning objects") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder competence learning objects\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder competence learning objects ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder competence learning objects") OR ("on python python python programming"))*.