Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huy duong he snippets" » "thuy duong he snippets", "huy dong he snippets", "hai duong he snippets", "huy duong che snippets", "huy dung he snippets", "huy duong ve 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 duong he 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 duong he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huy duong he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huy duong he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.