Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan lap doan snippets" » "dan lap doanh snippets", "dan tap doan snippets", "dan lap dan snippets", "phan lap doan snippets", "dan luan doan 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 lap doan 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 lap doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan lap doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan lap doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.