Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat khach da snippets" » "dat khanh da snippets", "vay khach da snippets", "can khach da snippets", "dat khach san snippets", "dat khach deu snippets", "dat kham 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: (((("dat khach 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: (((("dat khach da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat khach da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat khach da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.