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