Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi duc tan slippers" » "do duc tan slippers", "doi duy tan slippers", "oi duc tan slippers", "doi duc tran slippers", "doi duc toan slippers", "doi duc than slippers", "doi duc tan slippery", "doi duc tan 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: (((("doi duc tan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( doi duc tan slippers ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("doi duc tan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.