Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using real slippers" » "python using metal slippers", "python using raw slippers", "python using real slippery", "python using real grippers"
"duc hoc dan snippets" » "duoc hoc dan snippets", "luc hoc dan snippets", "du hoc dan snippets"

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

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