Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi va da snippets" » "hoi va da snippets", "khi va da snippets", "choi va da snippets", "khoi va dao snippets", "khoi va dau snippets", "khoi va dap 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: (((("khoi va da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi va da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi va da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi va da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.