Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets"
"vi sinh open snippets" » "vi using open snippets", "vi sinh vien snippets", "vi sinh tren snippets"

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 sinh open snippets\") OR (\"using data java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( vi sinh open snippets ) OR ( using data java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi sinh open snippets") OR ("using data java snippets"))) OR ("locating bugs code snippets"))*.