Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha du bo snippets" » "pham duc bo snippets", "pham duy bo snippets", "phan duc bo snippets", "pha du bao snippets", "pha do bo snippets", "pha de bo 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: (((("pha du bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha du bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha du bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha du bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.