Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung va php slippers" » "dung va phap slippers", "dung va phe slippers", "dung va pha slippers", "dung va php slippery", "dung va php 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: (((("dung va php slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung va php slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung va php slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung va php slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.