Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong du hoc snippets" » "cong du code snippets", "cong dau hoc snippets", "cong duc hoc snippets", "cong duy hoc snippets", "cong tu hoc snippets", "cong duoc 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 ("cong du hoc snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cong du hoc snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cong du hoc snippets"))) or ("locating bug core snippets"))*.