Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van van toi snippets" » "van van code snippets", "van ban toi snippets", "tan van toi snippets", "san van toi snippets", "van van tai snippets", "van van thi snippets", "van van toan snippets"
"python using java snippets" » "python using data 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 ("van van toi snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van van toi snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van van toi snippets"))) or ("locating bug core snippets"))*.