Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu lam du snippets" » "lieu lai du snippets", "lieu tham du snippets", "lieu va du snippets", "lieu lam dau snippets", "lieu lap du snippets", "lieu la du snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

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