Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chiec va cao snippets" » "chiec la cao snippets", "chien va cao snippets", "viec va cao snippets", "chiec va cac snippets", "chiec va co snippets", "chiec va dao 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: (((("chiec va cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chiec va cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chiec va cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chiec va cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.