Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lanh voi da snippets" » "hanh voi da snippets", "hanh vi da snippets", "lanh hai da snippets", "lanh voi dac snippets", "lanh voi dai snippets", "lanh voi dan 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: (((("lanh voi da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lanh voi da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lanh voi da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lanh voi da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.