Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat thuy do snippets" » "dat thu do snippets", "bat thuy do snippets", "dang thuy do snippets", "dat thuyet do snippets", "dat thay doi snippets", "dat thuat do 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 thuy 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: (((("dat thuy do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat thuy do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat thuy do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.