Perhaps you should try some spelling variations:
"hoat dung code snippets" » "hoat dong code snippets", "hoang dung code snippets", "hoai duong code snippets", "hoat dung cong snippets", "hoat dung co snippets", "hoat dung de snippets"
"locating bug core snippets" » "locating bug code snippets"
"using a java snippets" » "using _ java snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using a java snippets") or ("hoat dung code snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a java snippets") OR ("hoat dung code snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using a java snippets ) or ( hoat dung code snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a java snippets") or ("hoat dung code snippets"))) or ("locating bug core snippets"))*.