Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"luu dan li snippets" » "luu van li snippets", "luu hanh li snippets", "luat dan li snippets", "luu ban li snippets", "luu han li snippets", "luu pan li snippets", "luu 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.

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