Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code snippets"
"luc van anh snippets" » "luoc van anh snippets", "luu van anh snippets", "duc van anh snippets", "luc van thanh snippets", "luc van minh snippets", "luc tuan anh snippets"

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

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