Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi tan doi snippets" » "doi tan code snippets", "doi ban doi snippets", "doi tac doi snippets", "dai tan doi snippets", "doi tan hoi snippets", "doi tan soi snippets", "doi tan voi snippets"
"python using java snippets" » "python using data 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: (((("python using java snippets") or ("doi tan doi snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("doi tan doi snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( doi tan doi snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("doi tan doi snippets"))) or ("locating bug core snippets"))*.