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