Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dam trao trinh snippets" » "dam tra trinh snippets", "dam tao trinh snippets", "dam trao tinh snippets", "dam rao trinh snippets", "dam bao trinh snippets", "tan trao trinh 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 ("dam trao trinh snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("dam trao trinh snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dam trao trinh snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dam trao trinh snippets"))) or ("locating bug core snippets"))*.