Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"long doan ca snippets" » "cong doan ca snippets", "dong doanh ca snippets", "rong doanh ca snippets", "long doan cap snippets", "long dan ca snippets", "long doan va 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: (((("long doan ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("long doan ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( long doan ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("long doan ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.