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