Perhaps you should try some spelling variations:
"coder coder equacao linear programming" » "coder cole equacao linear programming" (Expand search), "coder modelo equacao linear programming" (Expand search), "coder calor equacao linear programming" (Expand search), "coder decoder equacao linear programming" (Expand search), "code code equacao linear programming" (Expand search), "decoder codec equacao linear programming" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ 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 equacao linear programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder equacao linear programming\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder equacao linear programming ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder equacao linear programming") OR ("_ python python python programming"))*.