Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan bi hoi snippets" » "phan bi hoi snippets", "than bi hoi snippets", "nhan biet hoi snippets", "nhan bia hoi snippets", "nhan bi hai snippets", "nhan bi hoa 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 bi hoi 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 bi hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan bi hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan bi hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.