Perhaps you should try some spelling variations:
"dan trinh vat snippets" » "dan tinh vat snippets", "van trinh vat snippets", "hanh trinh vat snippets", "dan trinh van snippets", "dan trinh luat snippets", "dan sinh vat snippets", "dan trinh vat slippers"
"using raw java snippets" » "using real java snippets", "using a java snippets", "using low java snippets", "using raw java 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: "((((\"dan trinh vat snippets\") OR (\"using raw java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( dan trinh vat snippets ) OR ( using raw java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dan trinh vat snippets") OR ("using raw java snippets"))) OR ("locating bug code snippets"))*.