Perhaps you should try some spelling variations:
"python using java slippers" » "python using data slippers", "python using java slippery", "python using java grippers"
"pha du mat snippets" » "pham duc mat snippets", "pham duy mat snippets", "phan duc mat snippets", "pha dau mat snippets", "pha de mat snippets", "pha dung mat snippets"
"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: (((("pha du mat snippets") OR ("python using java slippers"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( pha du mat snippets ) or ( python using java slippers ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("pha du mat snippets") or ("python using java slippers"))) or ("locating bug code snippets"))*.