Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nganh co da snippets" » "nganh cong da snippets", "nganh hoa da snippets", "nganh y da snippets", "nganh co dan snippets", "nganh co dai snippets", "nganh co dau 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: (((("nganh co 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: (((("nganh co da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nganh co da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nganh co da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.