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