Perhaps you should try some spelling variations:
"van ngoc hoan slices" » "van ngoc ham slices", "van ngoc hoang slices", "van ngoc hoa slices", "van ngoc toan slices", "tran ngoc hoan slices", "van hoc hoan slices", "van nghe hoan 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 ngoc hoan 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 ngoc hoan slices"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van ngoc hoan slices ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van ngoc hoan slices"))) or ("locating bug code snippets"))*.