Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi co cung snippets" » "doi co chung snippets", "doi co hung snippets", "doi so cung snippets", "doi bo cung snippets", "moi co cung snippets", "hoi co cung 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: (((("doi co cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi co cung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi co cung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi co cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.