Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"
"vi dinh lam slippery" » "vi dinh van slippery", "vi tinh lao slippery", "vi sinh lam slippery", "vi tinh lam slippery", "vu dinh lam slippery", "vi dinh lam slippers"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"vi dinh lam slippery\") OR (\"using java java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( vi dinh lam slippery ) OR ( using java java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi dinh lam slippery") OR ("using java java snippets"))) OR ("locating bug core snippets"))*.