Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc hanh ton snippets" » "duc thanh ton snippets", "duc anh ton snippets", "du hanh ton snippets", "duc hang ton snippets", "duc hanh tot snippets", "duc hanh tin 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: (((("duc hanh ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc hanh ton snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc hanh ton snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc hanh ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.