Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mon tang cua snippets" » "son tang cua snippets", "mon tieng cua snippets", "cong tang cua snippets", "mon mang cua snippets", "mon hang cua snippets", "mon tang luan 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: (((("mon tang 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: (((("mon tang cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mon tang cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mon tang cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.