Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luong java java snippets" » "luong va java snippets"
"dung dat robot snippets" » "dung tao robot snippets", "dung a robot snippets", "dung tay robot snippets", "dung va robot snippets", "dung tai 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: (((("luong java java snippets") OR ("dung dat robot snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"luong java java snippets\") OR (\"dung dat robot snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( luong java java snippets ) OR ( dung dat robot snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong java java snippets") OR ("dung dat robot snippets"))) OR ("locating bug core snippets"))*.