Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hay nhat de snippets" » "pham nhat de snippets", "hat nhan de snippets", "dai nhat de snippets", "hay nhat ve snippets", "hay nhat le snippets", "hay chat deo 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: (((("hay nhat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hay nhat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hay nhat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hay nhat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.