Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc phan mem slippers" » "dung phan mem slippers", "duc thang mem slippers", "duc phung mem slippers", "duc phan mem slippery", "duc phan mem grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

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