Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"coc toan chi snippets" » "ngoc toan chi snippets", "coc khoan chi snippets", "quoc toan chi snippets", "coc toan cao snippets", "coc tai chi snippets", "coc luan 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: (((("coc toan 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: (((("coc toan chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( coc toan chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("coc toan chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.