Perhaps you should try some spelling variations:
"vi dong chet snippets" » "vi dong code snippets", "vi dong che snippets", "vi dong chen snippets", "vi dung chet snippets", "voi dong chet snippets", "di dong chet snippets", "va dong chet snippets"
"locating bug core snippets" » "locating bug code 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: (((("using a java snippets") or ("vi dong chet snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using a java snippets") OR ("vi dong chet snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using a java snippets ) or ( vi dong chet snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using a java snippets") or ("vi dong chet snippets"))) or ("locating bug core snippets"))*.