Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan quan doi snippets" » "van quan doi snippets", "ban quan doi snippets", "dan luan doi snippets", "dan quan tri snippets", "dan quan li 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: (((("dan quan doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan quan doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan quan doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan quan doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.