Perhaps you should try some spelling variations:
"coder teaching learning algorithm complexity" » "coder teaching learning algorithms complexity" (Expand search), "coder teaching learning algorithmic complexity" (Expand search), "code teaching learning algorithm complexity" (Expand search), "poder teaching learning algorithm complexity" (Expand search), "model teaching learning algorithm complexity" (Expand search)
"on pythons python python programming" » "on pitons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pythons piton python programming" (Expand search), "on pythons pitons python programming" (Expand search), "on pythons pytm python programming" (Expand search), "on python python python programming" (Expand search), "in python python python programming" (Expand search), "of python 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 teaching learning algorithm complexity\") OR (\"on pythons python python programming\"))~".
• Removing quotes may allow a broader search: (( coder teaching learning algorithm complexity ) OR ( on pythons python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder teaching learning algorithm complexity") OR ("on pythons python python programming"))*.