Perhaps you should try some spelling variations:
"using visual c snippets" » "using virtual c snippets", "bang visual c snippets", "situ visual c snippets", "using visual _ snippets"
"nhan tai java snippets" » "hang tai java snippets", "van tai java snippets", "toan tai java snippets", "nhan tai va snippets"
"locating bug code snippets" » "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: "((((\"nhan tai java snippets\") OR (\"using visual c snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( nhan tai java snippets ) OR ( using visual c snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("nhan tai java snippets") OR ("using visual c snippets"))) OR ("locating bug code snippets"))*.