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