Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung nam chu snippets" » "dong nam chu snippets", "dung lam chu snippets", "sung nam chu snippets", "dung nam chi snippets", "dung nam thu 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 chu 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 chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung nam chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung nam chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.