Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ke don cot snippets" » "ke tong cot snippets", "ke don chat snippets", "ke dan cot snippets", "ke do cot snippets", "ke doc cot 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: (((("ke don cot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ke don cot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ke don cot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ke don cot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.