Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat thanh so snippets" » "dao thanh so snippets", "dat khanh so snippets", "dang thanh so snippets", "dat thanh son snippets", "dat thanh do snippets", "dat than so 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 thanh so 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 thanh so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat thanh so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat thanh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.