Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan hanh don snippets" » "dang hanh don snippets", "dan khanh don snippets", "dan thanh don snippets", "dan hanh dong snippets", "dan nhanh dong snippets", "dan hanh doanh 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: (((("dan hanh don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan hanh don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan hanh don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan hanh don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.