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