Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"using data java snippets" » "using java java snippets", "using sat java snippets", "missing data java snippets"
"le trong van snippets" » "le trong cac snippets", "le trung van snippets", "ly trong van snippets", "le tang van 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: (((("using data java snippets") OR ("le trong van snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using data java snippets ) or ( le trong van snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using data java snippets") or ("le trong van snippets"))) or ("locating bug core snippets"))*.