Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"vi duong loi snippets" » "vi duong code snippets", "vi duong co snippets", "vi duong thi snippets", "vi luong loi snippets", "va duong loi snippets", "vu duong loi snippets"
"using java java snippets" » "using data java 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: "((((\"vi duong loi snippets\") OR (\"using java java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( vi duong loi snippets ) OR ( using java java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi duong loi snippets") OR ("using java java snippets"))) OR ("locating bug core snippets"))*.