Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"le vinh hung snippets" » "le dinh huong snippets", "le tinh huong snippets", "le manh hung snippets", "le dinh hung snippets", "le minh hung snippets", "le ninh hung snippets", "le vinh hung 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: (((("le vinh hung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("le vinh hung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( le vinh hung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("le vinh hung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.