Perhaps you should try some spelling variations:
"hoang dung cac snippets" » "hoang tung cac snippets", "hoang vuong cac snippets", "quang dung cac snippets", "hoang luong cac snippets", "hoang dung cho snippets", "hoang dung tai snippets"
"thong dung cac snippets" » "thong cong cac snippets", "thong thuong cac snippets", "thong luong cac snippets", "thong dung cho snippets", "thong dung tai 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoang dung cac snippets") OR ("thong dung cac snippets"))) OR ("locating bug code snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"hoang dung cac snippets\") OR (\"thong dung cac snippets\"))) or (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( hoang dung cac snippets ) OR ( thong dung cac snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hoang dung cac snippets") OR ("thong dung cac snippets"))) or ("locating bug code snippets"))*.