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