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