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