Perhaps you should try some spelling variations:
"voi cong thanh snippets" » "voi dong thanh snippets", "voi cong trinh snippets", "voi cong tan snippets", "noi cong thanh snippets", "moi cong thanh snippets", "tai cong thanh snippets", "voi cong thanh slippers"
"using sat java snippets" » "using data java snippets", "using a java snippets", "using raw java snippets", "using sat va snippets", "using sat java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 sat java snippets") or ("voi cong thanh snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using sat java snippets") OR ("voi cong thanh snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using sat java snippets ) or ( voi cong thanh snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using sat java snippets") or ("voi cong thanh snippets"))) or ("locating bug code snippets"))*.