Perhaps you should try some spelling variations:
"trang trinh java snippets" » "tra trinh java snippets", "trang tri java snippets", "thanh trinh java snippets"
"using c core snippets" » "using lc core snippets", "using a core snippets", "using _ core snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs 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 c core snippets") or ("trang trinh java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using c core snippets") OR ("trang trinh java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using c core snippets ) or ( trang trinh java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using c core snippets") or ("trang trinh java snippets"))) or ("locating bug code snippets"))*.