Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi benh tre snippets" » "chi ben tre snippets", "chi binh tre snippets", "chua benh tre snippets", "chi benh theo snippets", "chi benh tai 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 benh tre 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 benh tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi benh tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi benh tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.