Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"quan ve duc snippets" » "quan he duc snippets", "quan vi duc snippets", "quan va duc snippets", "quan ve duoc snippets", "quan vu duc snippets", "quan le 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: (((("quan ve duc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( quan ve duc snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("quan ve duc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.