Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chat so toan snippets" » "nhat so toan snippets", "chat co toan snippets", "chat bo toan snippets", "chat so tan snippets", "chat so than snippets", "chat bao toan 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: (((("chat so toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chat so toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chat so toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chat so toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.