Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi deu cao snippets" » "doi deu code snippets", "doi dau cao snippets", "doi de cao snippets", "moi dieu cao snippets", "doi deu co snippets", "doi dieu can snippets", "doi dieu cam 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 deu cao 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 deu cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi deu cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi deu cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.