Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung nam cap snippets" » "dong nam cap snippets", "dung lam cap snippets", "sung nam cap snippets", "dung nam cao snippets", "dung nam cac snippets", "dung nam ap 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: (((("dung nam cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung nam cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung nam cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung nam cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.