Perhaps you should try some spelling variations:
"van phan ham slippers" » "van phan ham slices", "van phong ham slippers", "van thanh ham slippers", "luan phan ham slippers", "van phan ha slippers", "van phan cam slippers", "van phan hai slippers"
"python using java snippets" » "python using data 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("van phan ham slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van phan ham slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van phan ham slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van phan ham slippers"))) or ("locating bug code snippets"))*.