Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc danh di snippets" » "thuc hanh di snippets", "thuc dan di snippets", "chuc danh di snippets", "thuc danh du snippets", "thuc xanh di snippets", "thuc danh dien 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: (((("thuc danh 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: (((("thuc danh di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc danh di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc danh di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.