Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khap va cao snippets" » "phap va cao snippets", "khau va cao snippets", "phap vat cao snippets", "khap va cac snippets", "khap va co snippets", "khap va dao 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: (((("khap va cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khap va cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khap va cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khap va cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.