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