Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan doi duc slippers" » "quan doi duc slippers", "lua doi duc slippers", "luan gioi duc slippers", "luan do duc slippers", "luan doi duy slippers", "luan oi duc slippers", "luan doi duc slippery", "luan doi duc grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

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