Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dam nhan cau snippets" » "dam phan cau snippets", "cam nhan cau snippets", "dac nhan cau snippets", "dam nhanh cau snippets", "dam nhan sau 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: (((("dam nhan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dam nhan cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dam nhan cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dam nhan cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.