Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"
"vi trinh van slippery" » "vi trinh han slippery", "vi trinh quan slippery", "vi trinh toan slippery", "vi tinh van slippery", "va trinh van slippery", "viet trinh van slippery", "vi trinh van 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 trinh van slippery\") OR (\"using java java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( vi trinh van slippery ) OR ( using java java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi trinh van slippery") OR ("using java java snippets"))) OR ("locating bug core snippets"))*.