Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat nghi don snippets" » "dat nghe don snippets", "dau nghia don snippets", "ca nghi don snippets", "dat nghi lon snippets", "dat nghia dong snippets", "dat nghiep don 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: (((("dat nghi 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: (((("dat nghi don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat nghi don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat nghi don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.