Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van luong cong snippets" » "van luong code snippets", "van dung cong snippets", "van trong cong snippets", "van cong cong snippets", "van duong cong snippets", "van cuong cong snippets", "nang luong cong snippets"
"using raw java snippets" » "using real java snippets", "using a java snippets", "using low 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 raw java snippets") OR ("van luong cong snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using raw java snippets\") OR (\"van luong cong snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( using raw java snippets ) OR ( van luong cong snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using raw java snippets") OR ("van luong cong snippets"))) OR ("locating bug core snippets"))*.