Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"same yi chen snippets" » "same yu chen snippets", "same yan chen snippets", "same hui chen snippets", "some yi chen 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: (((("same yi chen snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("same yi chen snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( same yi chen snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("same yi chen snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.