Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong doi den snippets" » "duong doi den snippets", "dung doi den snippets", "dong hoi den snippets", "dong doi dien snippets", "dong di den snippets", "dong doi dan 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: (((("dong doi 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: (((("dong doi den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong doi den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong doi den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.