Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"trac ho dan snippets" » "trac hoc dan snippets", "trao ho dan snippets", "trac nha dan snippets", "trac hoa dan snippets", "trac hoi dan 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: (((("trac ho dan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( trac ho dan snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("trac ho dan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.