Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung dia cua snippets" » "dung giao cua snippets", "dung dich cua snippets", "dung dien cua snippets", "dung gia cua snippets", "dung da cua snippets", "dung di cua 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: (((("dung dia cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung dia cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dia cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dia cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.