Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dai cuong low snippets" » "dai cuong code snippets", "tai cong low snippets", "dai duong loi snippets", "dai cuong vo snippets", "dai cong lon 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: "((((\"dai cuong low snippets\") OR (\"using java java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( dai cuong low snippets ) OR ( using java java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("dai cuong low snippets") OR ("using java java snippets"))) OR ("locating bug core snippets"))*.