Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kon dung co snippets" » "kon rung co snippets", "khong dung co snippets", "khoan dung co snippets", "kon dung cho snippets", "kon dung cong snippets", "kon dung cua 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 co 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 co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kon dung co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kon dung co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.