Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi khoi he snippets" » "chi khoa he snippets", "khi khoi he snippets", "chi thoi he snippets", "chi khoi de snippets", "chi khong he 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: (((("chi khoi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi khoi he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi khoi he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi khoi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.