Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"vien truong dao snippets" » "mien trung dao snippets", "vien thong dao snippets", "bien trong dao snippets", "vien truong dai snippets", "vien truong cao snippets", "vien truong bo snippets"
"using a java snippets" » "using _ java snippets"

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

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