Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan tang du snippets" » "phap tang du snippets", "phan dang du snippets", "phan cang du snippets", "phan nang du snippets", "phan hang dau snippets", "phan dang duc 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: (((("phan tang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan tang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan tang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan tang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.