Perhaps you should try some spelling variations:
"van nga hang slices" » "van nga ham slices", "van ngan hang slices", "van nga hoang slices", "van nha hang slices", "van nghe hang slices", "van ngoc hang slices", "van nhan hang 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van nga hang slices"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van nga hang slices ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van nga hang slices"))) or ("locating bug code snippets"))*.