Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khu diet con snippets" » "thu dieu con snippets", "thu dien con snippets", "chu viet con snippets", "khu dieu con snippets", "khu giet con snippets", "khu dien cong 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: (((("khu diet con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khu diet con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khu diet con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu diet con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.