Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat luan soc snippets" » "dan luan soc snippets", "dau luan soc snippets", "dat quang soc snippets", "dat luan hoc snippets", "dat luan nuoc snippets", "dat luan quoc 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 luan soc 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 luan soc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat luan soc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat luan soc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.