Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets"
"van tai java slippery" » "van tai va slippery", "von tai java slippery", "van tuan java slippery", "van tai java 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: "((((\"van tai java slippery\") OR (\"using data java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( van tai java slippery ) OR ( using data java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van tai java slippery") OR ("using data java snippets"))) OR ("locating bug core snippets"))*.