Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc mach hoc snippets" » "toc sach hoc snippets", "hoc mac hoc snippets", "tim mach hoc snippets", "toc cach hoc snippets", "toc dich hoc snippets", "toc anh hoc 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: (((("toc mach hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc mach hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc mach hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc mach hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.