Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu duc code snippets" » "khu duc cong snippets", "khu duc con snippets", "khu bug code snippets", "khu vuc code snippets", "khu du code snippets", "thu duc code snippets"
"locating bug core snippets" » "locating bug code snippets"

You may be able to get more results by adjusting your search query.

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