Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hay nhat hoi snippets" » "pham nhat hoi snippets", "hat nhan hoi snippets", "dai nhat hoi snippets", "hay nhat moi snippets", "hay nhat hoa snippets", "hay nhat loi 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 hoi 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 hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hay nhat hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hay nhat hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.