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