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