Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can nhi den snippets" » "can thi den snippets", "van nhi den snippets", "can chi den snippets", "can thai den snippets", "can khi dien snippets", "can nghi don 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: (((("can nhi 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: (((("can nhi den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can nhi den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can nhi den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.