Perhaps you should try some spelling variations:
"van phan hoang slices" » "van phan ham slices", "van pham hoang slices", "van phan hong slices", "van phan hoan slices", "van phong hoang slices", "van thanh hoang slices", "luan phan hoang slices"
"python using java snippets" » "python using data snippets", "python using java slippers"
"locating bug code snippets" » "locating bug code slippers", "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 hoang slices"))) 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 hoang slices"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van phan hoang slices ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van phan hoang slices"))) or ("locating bug code snippets"))*.