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