Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan de moi snippets" » "luan den moi snippets", "luan ve moi snippets", "luat de moi snippets", "luan de mo snippets", "luan te moi 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: (((("luan de moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan de moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan de moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan de moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.