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