Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using raw snippets" » "python using real snippets", "python using a snippets", "python using low snippets"
"nhan hoc dan snippets" » "nha hoc dan snippets", "nhan hoa dan snippets", "than 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: (((("python using raw snippets") OR ("nhan hoc dan snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using raw snippets ) or ( nhan hoc dan snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using raw snippets") or ("nhan hoc dan snippets"))) or ("locating bug core snippets"))*.