Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi tu doi snippets" » "doi tu code snippets", "doi thu doi snippets", "loi tu doi snippets", "hoi tu doi snippets", "doi tu do snippets", "doi te doi snippets", "doi tu di 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 tu 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 tu doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi tu doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi tu doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.