Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc phan dua slippers" » "hoc phan dua slippers", "duc phan dua slippers", "doc than dua slippers", "doc phan duc slippers", "doc phan duy slippers", "doc phan quan slippers", "doc phan dua slippery", "doc phan dua 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: (((("doc phan dua slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc phan dua slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc phan dua slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc phan dua slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.