Perhaps you should try some spelling variations:
"coder coder in optimisation problem" » "coder coder in optimisation problems" (Expand search), "coder coder in optimization problem" (Expand search), "coder coder in optimization problems" (Expand search), "coder coder an optimisation problem" (Expand search), "coder coder on optimisation problem" (Expand search), "coder decoder in optimisation problem" (Expand search), "code code in optimisation problem" (Expand search), "decoder codec in optimisation problem" (Expand search), "coder code in optimisation problem" (Expand search), "coder codes in optimisation problem" (Expand search), "coder poder in optimisation problem" (Expand search)
"and python python python programming" » "and pythons python python programming" (Expand search), "and piton python python programming" (Expand search), "and pitons python python programming" (Expand search), "in python python python programming" (Expand search), "on python python python programming" (Expand search), "api python python 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 in optimisation problem") OR ("and python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder in optimisation problem\") OR (\"and python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder in optimisation problem ) OR ( and python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder in optimisation problem") OR ("and python python python programming"))*.