Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java grippers" » "python using data grippers", "python using java slippers"
"duc hoc dai snippets" » "duoc hoc dai snippets", "luc hoc dai snippets", "du hoc dai snippets", "duc hoc 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: (((("duc hoc dai snippets") OR ("python using java grippers"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( duc hoc dai snippets ) or ( python using java grippers ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("duc hoc dai snippets") or ("python using java grippers"))) or ("locating bug core snippets"))*.