Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan van may slippers" » "pham van may slippers", "thanh van may slippers", "luan van may slippers", "phan van man slippers", "phan van mao slippers", "phan van my slippers", "phan van may slippery", "phan van may 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: (((("phan van may slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan van may slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan van may slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan van may slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.