Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kon dung cua snippets" » "kon rung cua snippets", "khong dung cua snippets", "khoan dung cua snippets", "kon dung luan snippets", "kon dung cho 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: (((("kon dung cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kon dung cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kon dung cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kon dung cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.