Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc nua doc snippets" » "luc cua doc snippets", "luc nhat doc snippets", "luc luan doc snippets", "luc nu doc snippets", "luc cua duoc snippets", "luc ngay doc 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: (((("luc nua doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc nua doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc nua doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc nua doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.