Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"luan dan li snippets" » "luan danh li snippets", "luan van li snippets", "luat dan li snippets", "luan ban li snippets", "luan han li snippets", "luan pan li snippets", "luan dan li 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: (((("luan dan li snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( luan dan li snippets ) or ( python using java snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("luan dan li snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.