Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"diet cho can snippets" » "dien cho can snippets", "viet cho can snippets", "biet cho can snippets", "diet cho cac snippets", "diet cho phan snippets", "diet 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: (((("diet 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: (((("diet cho can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( diet cho can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("diet cho can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.