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