Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ket dan mo snippets" » "ket doan mo snippets", "ke dan mo snippets", "ket van mo snippets", "ket dan mon snippets", "ket dan so snippets", "ket fan mo 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 dan mo 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 dan mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ket dan mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ket dan mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.