Perhaps you should try some spelling variations:
"nhap van pham slices" » "nhap van ham slices", "nha van pham slices", "nhan van pham slices", "phap van pham slices", "nhap san pham slices", "nhap van phan slices", "nhap van phat slices"
"python using java slippers" » "python using data slippers", "python using java slippery", "python using java 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: (((("python using java slippers") OR ("nhap van pham slices"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( python using java slippers ) or ( nhap van pham slices ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java slippers") or ("nhap van pham slices"))) or ("locating bug code snippets"))*.