Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nha khach do snippets" » "he khach do snippets", "cua khach do snippets", "nha khac do snippets", "nha khach deu snippets", "nha khac di 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: (((("nha khach do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nha khach do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nha khach do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nha khach do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.