Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan sinh do snippets" » "nhan sinh dao snippets", "nhan kinh do snippets", "nhan sinh de snippets", "phan sinh do 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 sinh do 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 sinh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan sinh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan sinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.