Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phat dam cao snippets" » "phat am cao snippets", "hat dam cao snippets", "phap dam cao snippets", "phat dam bao snippets", "phat nam cao snippets", "phat dam rao 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: (((("phat dam 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: (((("phat dam cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phat dam cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phat dam cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.