Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan vi dan slippers" » "doan va dan slippers", "don vi dan slippers", "doan thi dan slippers", "doan voi dan slippers", "doan vi dai slippers", "doan vi dan slippery", "doan vi dan grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("doan vi dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( doan vi dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doan vi dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.