Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"danh ca can snippets" » "dan ca can snippets", "doanh cua can snippets", "danh cho can snippets", "danh cua can snippets", "danh cap can snippets", "danh ca dan 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: (((("danh ca 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: (((("danh ca can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( danh ca can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh ca can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.