Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat viet ca snippets" » "dao viet ca snippets", "da viet ca snippets", "dai viet ca snippets", "dat viet ha snippets", "dat viet co snippets", "dat viet a 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: (((("dat viet 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: (((("dat viet ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat viet ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat viet ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.