Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung co dr snippets" » "dung cho dr snippets", "dung cong dr snippets", "dung cua dr snippets", "dung co cr snippets", "dung co do snippets", "dung co da 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: (((("dung co dr snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung co dr snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung co dr snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung co dr snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.