Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ly luong den snippets" » "ly luong dien snippets", "ly huong den snippets", "ly tuong den snippets", "ly luan den snippets", "do luong den snippets", "ly trong den 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: (((("ly luong 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: (((("ly luong den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ly luong den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ly luong den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.