Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong dam cao snippets" » "dong nam cao snippets", "dong dat cao snippets", "dong dao cao snippets", "dong dam bao snippets", "dong dam rao 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: (((("dong dam cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong dam cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong dam cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong dam cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.