Perhaps you should try some spelling variations:
"coder coder moodle platform problem" » "coder coder moodle platforms problems" (Expand search), "coder coder moodle plateau problem" (Expand search), "coder coder moodle platform from" (Expand search), "coder model moodle platform problem" (Expand search), "coder del moodle platform problem" (Expand search), "coder decoder moodle platform problem" (Expand search), "code code moodle platform problem" (Expand search), "decoder codec moodle platform problem" (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 moodle platform problem") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder moodle platform problem\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder moodle platform problem ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder moodle platform problem") OR ("on python python python programming"))*.