Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chen va cao snippets" » "chien va cao snippets", "che va cao snippets", "chon va cao snippets", "chen va cac snippets", "chen va co snippets", "chen va dao 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: (((("chen va 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: (((("chen va cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chen va cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chen va cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.