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