Perhaps you should try some spelling variations:
"dong chuyen he snippets" » "bong chuyen he snippets", "khong chuyen he snippets", "dong truyen he snippets", "dong chuyen de snippets", "dong chuyen xe snippets", "dong chuyen ve snippets"
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code 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 ("dong chuyen he snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("dong chuyen he snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dong chuyen he snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dong chuyen he snippets"))) or ("locating bug core snippets"))*.