Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu van duc slippers" » "hieu va duc slippers", "thien van duc slippers", "lieu va duc slippers", "hieu van duy slippers", "hieu van du slippers", "hieu tran duc slippers", "hieu van duc slippery", "hieu van 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: (((("hieu van 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: (((("hieu van duc slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu van duc slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu van duc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.