Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hap tao cao snippets" » "nhan tao cao snippets", "phap tai cao snippets", "thap tai cao snippets", "hap bao cao snippets", "hap 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: (((("hap 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: (((("hap tao cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hap tao cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hap tao cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.