Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"soan le doan snippets" » "loan le doan snippets", "son le doan snippets", "hoang le doan snippets", "soan le dan snippets", "soan ly doanh snippets", "soan le hoang 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: (((("soan le doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("soan le doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( soan le doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("soan le doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.