Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"doi duc dan slippers" » "do duc dan slippers", "doi duy dan slippers", "oi duc dan slippers", "doi duoc dan slippers", "doi duc tan slippers", "doi duc dai slippers", "doi duc dan slippery", "doi duc dan grippers"

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

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