Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran si cao snippets" » "tran thi cao snippets", "tran gia cao snippets", "tran su cao snippets", "tran si cay snippets", "tran sieu cao 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: (((("tran si cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran si cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran si cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran si cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.