Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"viet dat tu snippets" » "viec dat tu snippets", "viet da tu snippets", "viet dao tu snippets", "viet dat thu snippets", "viet vat tu snippets", "viet dat su snippets", "viet dat tu 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: "((((\"viet dat tu snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( viet dat tu snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("viet dat tu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.