Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dua tao cao snippets" » "dua vao cao snippets", "cua tao cao snippets", "da tao cao snippets", "dua bao cao snippets", "dua toan cao 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: (((("dua tao cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dua tao cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dua tao cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dua tao cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.