Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"deu cao tinh snippets" » "deu cao minh snippets", "deu cac tinh snippets", "deu ca tinh snippets", "deu co tinh snippets", "dieu can tinh snippets", "dieu cam tinh snippets", "deu cao tinh slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("deu cao tinh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("deu cao tinh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( deu cao tinh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("deu cao tinh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.