Perhaps you should try some spelling variations:
"coder fragmentacao espectral linear programming" » "coder desfragmentacao espectral linear programming" (Expand search), "coder fragmentacao espacial linear programming" (Expand search), "coder fragmentacao eleitoral linear programming" (Expand search), "poder fragmentacao espectral linear programming" (Expand search), "des fragmentacao espectral linear programming" (Expand search), "coral fragmentacao espectral linear programming" (Expand search), "coder fragmentacao spectral linear programming" (Expand search), "coder fragmentacao espetral linear programming" (Expand search), "coder fragmentacao especial linear programming" (Expand search)
"python coding in python programming" » "action coding in python programming" (Expand search), "python code in python programming" (Expand search), "python coding rna python programming" (Expand search), "python coding and python programming" (Expand search), "python coding _ 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 fragmentacao espectral linear programming") OR ("python coding in python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder fragmentacao espectral linear programming\") OR (\"python coding in python programming\"))".
• Removing quotes may allow a broader search: (( coder fragmentacao espectral linear programming ) OR ( python coding in python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder fragmentacao espectral linear programming") OR ("python coding in python programming"))*.