Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cu quan ao snippets" » "cua quan ao snippets", "cuc quan ao snippets", "co quan ao snippets", "cu quan so snippets", "cu quan am snippets", "cu quan co 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: (((("cu quan 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: (((("cu quan ao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cu quan ao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cu quan ao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.