Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan dang du snippets" » "phan dau du snippets", "phan cong du snippets", "nhan dan du snippets", "phan dang duc snippets", "phan dang su snippets", "phan nang du 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 dang 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 dang du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan dang du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan dang du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.