Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan ky den snippets" » "nhan y den snippets", "nhat ky den snippets", "than ky den snippets", "nhan ky dan snippets", "nhan ky yen 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: (((("nhan ky 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: (((("nhan ky den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan ky den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan ky den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.