Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"toc phuc hoc snippets" » "toc phu hoc snippets", "moc phuc hoc snippets", "toc hoc hoc snippets", "toc phuc hoi snippets", "toc phuc hoa snippets", "toc phuc 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 phuc 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 phuc hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( toc phuc hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc phuc hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.