Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"doi dan dao snippets" » "hoi dan dao snippets", "doi ban dao snippets", "doi dau dao snippets", "doi van dao snippets", "doi dan dat snippets", "doi dan da snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi dan dao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( doi dan dao snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doi dan dao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.