Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ca dua doan snippets" » "ca du doan snippets", "ca quan doan snippets", "ca cua doanh snippets", "cay dua doan snippets", "ca cua doan snippets", "ca da doan 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: (((("ca dua doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ca dua doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ca dua doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ca dua doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.