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