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