Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ket doan noi snippets" » "ket hoa noi snippets", "le doan noi snippets", "ket van noi snippets", "ket toan noi snippets", "ket doan ngoai snippets", "ket doan ngoc 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: (((("ket doan noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ket doan noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ket doan noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ket doan noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.