Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung mon o snippets" » "dung muon o snippets", "dung mo o snippets", "dung mot o snippets", "dung mon _ snippets", "dung moi o 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 mon o 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 mon o snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung mon o snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung mon o snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.