Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong dao ton snippets" » "dong dat ton snippets", "dong giao ton snippets", "dong co ton snippets", "dong dao tong snippets", "dong bao ton snippets", "dong dao trong 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: (((("dong dao ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong dao ton snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong dao ton snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong dao ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.