Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi cao hon snippets" » "doi cao code snippets", "do cao hon snippets", "doi co hon snippets", "doc cao hon snippets", "doi cao son snippets", "doi cao hoc snippets", "doi ca hon 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 cao hon 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 cao hon snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi cao hon snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi cao hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.