Perhaps you should try some spelling variations:
"vi chinh code snippets" » "vi chinh cong snippets", "vi chinh che snippets", "va chinh code snippets", "ve chinh code snippets", "tai chinh code snippets"
"using java java snippets" » "using data java snippets"
"locating bug core snippets" » "locating bug code snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("vi chinh code snippets") OR ("using java java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"vi chinh code snippets\") OR (\"using java java snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( vi chinh code snippets ) OR ( using java java snippets ))) OR ( locating bug core snippets ))*.