Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trinh lon ve snippets" » "trinh con ve snippets", "trinh len ve snippets", "trinh lop ve snippets", "trinh long ve snippets", "trinh lon va snippets", "trinh lon vi 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: (((("trinh lon ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh lon ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh lon ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh lon ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.