Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dan hoc de snippets" » "van hoc de snippets", "dan toc de snippets", "dai hoc de snippets", "dan hoc he snippets", "dan hoc te snippets", "dan hoc do 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: (((("dan hoc de snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( dan hoc de snippets ) or ( python using java snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dan hoc de snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))*.