Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quan den voi snippets" » "quan doan voi snippets", "quan he voi snippets", "quan doi voi snippets", "quan dien voi snippets", "quan den coi snippets", "quan den vai 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 den voi 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 den voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quan den voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quan den voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.