Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"van quang a snippets" » "van quan a snippets", "tran quang a snippets", "van tuan a snippets", "van quang ma snippets", "van quang va snippets", "van quang _ snippets"
"locating bug core snippets" » "locating bug code 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 java code snippets") OR ("van quang a snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( van quang a snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("van quang a snippets"))) or ("locating bug core snippets"))*.