Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam van lee snippets" » "dao van lee snippets", "nam van lee snippets", "pham van lee snippets", "dam van le snippets", "dam han lee snippets", "dam tan lee 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: (((("dam van lee snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dam van lee snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam van lee snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam van lee snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.