Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan duoc da snippets" » "nhan cuoc da snippets", "nhan quoc da snippets", "phan duoc da snippets", "nhan duoc dai snippets", "nhan duoc dan snippets", "nhan duoc dao 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: (((("nhan duoc da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan duoc da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan duoc da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan duoc da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.