Perhaps you should try some spelling variations:
"code implementation and loading problem" » "model implementation and loading problem" (Expand search), "care implementation and loading problem" (Expand search), "coffee implementation and loading problem" (Expand search), "code implementation of loading problem" (Expand search), "code implementation and routing problem" (Expand search), "code implementation and planning problem" (Expand search), "code implementation and unloading problem" (Expand search)
"python codigo python python programming" » "python coding python python programming" (Expand search), "python code python python programming" (Expand search), "python codigo pythons python programming" (Expand search), "python codigo piton python programming" (Expand search), "python codigo pitons 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: (("code implementation and loading problem") OR ("python codigo python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"code implementation and loading problem\") OR (\"python codigo python python programming\"))".
• Removing quotes may allow a broader search: (( code implementation and loading problem ) OR ( python codigo python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("code implementation and loading problem") OR ("python codigo python python programming"))*.