Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"
"va trinh lap snippets" » "va trinh luat snippets", "va trinh luan snippets", "va trinh phap snippets", "van trinh lap snippets", "va tinh lap snippets", "lap trinh lap snippets"

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

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