Perhaps you should try some spelling variations:
"gia trong code snippets" » "gia trong cong snippets", "gia trong co snippets", "gia trong che snippets", "gian trong code snippets", "gia tuong code snippets", "dia trong code snippets"
"dung java java snippets" » "dung va java snippets"
"locating bug core snippets" » "locating bug code 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: "((((\"gia trong code snippets\") OR (\"dung java java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( gia trong code snippets ) OR ( dung java java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("gia trong code snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets"))*.