Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoan le da snippets" » "khoan ke da snippets", "hon le da snippets", "khoan va da snippets", "khoan le dan snippets", "khoan le dac snippets", "khoan le dai 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: (((("khoan le 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: (((("khoan le da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoan le da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoan le da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.