Perhaps you should try some spelling variations:
"coder using optimization algorithms complexity" » "coder using optimization algorithm complexity" (Expand search), "coder using optimization algorithmic complexity" (Expand search), "coder time optimization algorithms complexity" (Expand search), "coders using optimization algorithms complexity" (Expand search), "cover using optimization algorithms complexity" (Expand search), "code using optimization algorithms complexity" (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.

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