Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat hua con snippets" » "dat cua con snippets", "dat luan con snippets", "dat khoa con snippets", "dat qua con snippets", "dat cua cong 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 hua con 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 hua con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat hua con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat hua con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.