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