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