Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam dao cao snippets" » "dam bao cao snippets", "dam dac cao snippets", "nam dao cao snippets", "dam dao tao snippets", "dam tao cao 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 dao cao 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 dao cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam dao cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam dao cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.