Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang dan doc snippets" » "dang dang doc snippets", "dang van doc snippets", "dung dan doc snippets", "dang dan toc snippets", "dang dan hoc snippets", "dang dan soc 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: (((("dang dan 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: (((("dang dan doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang dan doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang dan doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.