Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh tot do snippets" » "hanh noi do snippets", "hanh tu do snippets", "hanh hoa do snippets", "hanh toc do snippets", "hanh toi do snippets", "hanh tot o 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: (((("hanh tot do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh tot do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh tot do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh tot do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.