Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kem gian don snippets" » "kem giai don snippets", "dam gian don snippets", "kim giao don snippets", "kem gian dan snippets", "kem giang son snippets", "kem gian dien 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: (((("kem gian don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kem gian don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kem gian don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kem gian don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.