Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"quan cua vu snippets" » "quan luan vu snippets", "ban cua vu snippets", "gian cua vu snippets", "quan cua su snippets", "quan cua vi snippets", "quan cua cu 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 java snippets") OR ("quan cua vu snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( quan cua vu snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("quan cua vu snippets"))) or ("locating bug core snippets"))*.