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