Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quan nam da snippets" » "quang nam da snippets", "xuan nam da snippets", "quan am da snippets", "quan nam dan snippets", "quan nam a snippets", "quan nam va 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: (((("quan nam da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quan nam da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan nam da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan nam da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.