Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luong van li slippers" » "luong va li slippers", "duong van li slippers", "luong vat li slippers", "luong van loi slippers", "luong van le slippers", "luong van ai slippers", "luong van li slippery", "luong van li 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.

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