Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi cho can snippets" » "voi chon can snippets", "hoi cho can snippets", "moi cho can snippets", "voi cho cac snippets", "voi cho phan snippets", "voi cho cong 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: (((("voi cho can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi cho can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi cho can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi cho can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.