Perhaps you should try some spelling variations:
"python using metal snippets" » "python using real snippets", "python nursing mental snippets", "python using medical snippets", "python using metal slippers"
"dung c code snippets" » "dung co code snippets", "dung cu code snippets", "dung _ code snippets", "dung cfd code snippets", "dung c code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using metal snippets") or ("dung c code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using metal snippets") OR ("dung c code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using metal snippets ) or ( dung c code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using metal snippets") or ("dung c code snippets"))) or ("locating bug code snippets"))*.