Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van luong doi snippets" » "van luong code snippets", "van duong doi snippets", "van cuong doi snippets", "nang luong doi snippets", "van huong doi snippets", "van luong do snippets"
"using java java snippets" » "using data java snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van luong doi snippets") OR ("using java java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( van luong doi snippets ) or ( using java java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van luong doi snippets") or ("using java java snippets"))) or ("locating bug core snippets"))*.