Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"vi phan van snippets" » "vi pham van snippets", "vi thanh van snippets", "vi luan van snippets", "va phan van snippets", "ve phan van snippets", "vi phan van slippers"
"using low java snippets" » "using low 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: "((((\"vi phan van snippets\") OR (\"using low java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( vi phan van snippets ) OR ( using low java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("vi phan van snippets") OR ("using low java snippets"))) OR ("locating bugs code snippets"))*.