Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hay tap toan snippets" » "hay tap doan snippets", "hay tap quan snippets", "hay bai toan snippets", "han tap toan snippets", "hai tap toan snippets", "phan tap 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: (((("hay tap 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: (((("hay tap toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hay tap toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hay tap toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.