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