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