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 duc snippets" » "trac hoc duc snippets", "trao ho duc snippets", "trac nha duc snippets", "trac do duc snippets", "trac hong duc 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 duc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( trac ho duc snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("trac ho duc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.