Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi khoa chi snippets" » "nhi khoa chi snippets", "chua khoa chi snippets", "thai khoa chi snippets", "chi khoa cham snippets", "chi khoa chau snippets", "chi ho chi 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 khoa chi 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 khoa chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi khoa chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi khoa chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.