Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh nam di snippets" » "thanh nam di snippets", "hanh lam di snippets", "hanh ngay di snippets", "hanh nam doi snippets", "hanh nam da snippets", "hanh nam do 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: (((("hanh nam di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh nam di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh nam di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh nam di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.