Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan van lu slippers" » "pham van lu slippers", "thanh van lu slippers", "luan van lu slippers", "phan van luc slippers", "phan van du slippers", "phan van le slippers", "phan van lu slippery", "phan van lu 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 lu 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 lu slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan van lu slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan van lu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.