Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mot cao do snippets" » "mot co do snippets", "mot cai do snippets", "mot cay do snippets", "mot cao dao snippets", "mot cau do snippets", "mot cap do 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: (((("mot cao 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: (((("mot cao do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mot cao do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mot cao do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.