Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ket doan cau snippets" » "ket hoa cau snippets", "le doan cau snippets", "ket van cau snippets", "ket toan cau snippets", "ket doan dau snippets", "ket doan cap 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 cau 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 cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ket doan cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ket doan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.