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