Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc cua doc snippets" » "luc chua doc snippets", "luc nua doc snippets", "tuc cua doc snippets", "luc cua duoc snippets", "luc cua duc snippets", "luc cua hoc 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 cua 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 cua doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc cua doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc cua doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.