Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc cong von snippets" » "hoc cong von snippets", "truoc cong von snippets", "thuoc cong von snippets", "toc dong von snippets", "toc cong lon snippets", "toc cong hon 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 cong von 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 cong von snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc cong von snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc cong von snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.