Perhaps you should try some spelling variations:
"coder coder optica linear programming" » "coder coder optimal linear programming" (Expand search), "coder coder opticas lineares programming" (Expand search), "coder coder logica linear programming" (Expand search), "coder poder optico linear programming" (Expand search), "coder cor optica linear programming" (Expand search), "coder code optical linear programming" (Expand search), "coder decoder optica linear programming" (Expand search), "code code optica linear programming" (Expand search), "decoder codec optica linear programming" (Expand search)
"monty python python python programming" » "monty pythons python python programming" (Expand search), "monty piton python python programming" (Expand search), "monty pitons 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 optica linear programming") OR ("monty python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder optica linear programming\") OR (\"monty python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder optica linear programming ) OR ( monty python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder optica linear programming") OR ("monty python python python programming"))*.