Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"python using java snippets" » "python using data snippets", "python using java slippers"
"hoc su dan snippets" » "hoc su dang snippets", "hoc cu dan snippets", "hoc so dan snippets", "hoc su dan slippers"

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 ("hoc su dan snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( hoc su dan snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("hoc su dan snippets"))) or ("locating bugs code snippets"))*.