Perhaps you should try some spelling variations:
"dao luong cong snippets" » "dao luong code snippets", "dao dung cong snippets", "dao trong cong snippets", "dao cong cong snippets", "do luong cong snippets", "dai luong cong snippets", "dao cuong cong snippets"
"locating bug core snippets" » "locating bug code snippets"
"using java java snippets" » "using data 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 java java snippets") or ("dao luong cong snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java snippets") OR ("dao luong cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java java snippets ) or ( dao luong cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") or ("dao luong cong snippets"))) or ("locating bug core snippets"))*.