Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"danh ca hat snippets" » "dan ca hat snippets", "doanh cua hat snippets", "danh cho hat snippets", "danh cau hat snippets", "danh cac hat snippets", "danh co hat snippets", "danh ca hat slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"danh ca hat snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( danh ca hat snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("danh ca hat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.