Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chat tac cua snippets" » "chat tai cua snippets", "chat thai cua snippets", "thuat tac cua snippets", "chat tac quan snippets", "chat thuc cua 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 tac cua 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 tac cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chat tac cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chat tac cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.