Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duong java java snippets" » "duong va java snippets"
"dung doi robot snippets" » "dung voi robot snippets", "dung so robot snippets", "huong doi robot snippets", "dung tai robot snippets", "dung co robot snippets"

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

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