Perhaps you should try some spelling variations:
"development implementation in loading problem" » "element implementation in loading problem" (Expand search), "development implementation and loading problem" (Expand search), "development implementation of loading problem" (Expand search), "development implementation in routing problem" (Expand search), "development implementation in planning problem" (Expand search), "development implementation in leading problem" (Expand search), "development implementation ii loading problem" (Expand search), "development implementation i loading problem" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking 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: (("development implementation in loading problem") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"development implementation in loading problem\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( development implementation in loading problem ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("development implementation in loading problem") OR ("using coding python python programming"))*.