Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java java snippets" » "using data java snippets"
"va duong cho snippets" » "va dung cho snippets", "va duong co snippets", "va dong cho snippets", "van duong cho snippets", "va tuong cho snippets", "va huong cho 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: "((((\"va duong cho snippets\") OR (\"using java java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( va duong cho snippets ) OR ( using java java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("va duong cho snippets") OR ("using java java snippets"))) OR ("locating bugs code snippets"))*.