Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan don den snippets" » "doan do den snippets", "doan duong den snippets", "doan dien den snippets", "doan don dien snippets", "doan dan den snippets", "doan don dep 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: (((("doan don den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan don den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan don den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan don den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.