Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung lam don snippets" » "dung luan don snippets", "dung tai don snippets", "dung dat don snippets", "dung lam dong snippets", "dung la don snippets", "dung lam son 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 lam don 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 lam don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung lam don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung lam don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.