Perhaps you should try some spelling variations:
"khoa tap cong snippets" » "khoa tai cong snippets", "khoa than cong snippets", "hoc tap cong snippets", "khoa tmcp cong snippets", "khoa cac cong snippets", "khoa tap co snippets"
"dung cac code snippets" » "luong cac code snippets", "dung cho code snippets", "dung tai code snippets", "dung cac cong snippets", "dung cac co snippets", "dung cac che 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: (((("khoa tap cong snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoa tap cong snippets") OR ("dung cac code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoa tap cong snippets ) or ( dung cac code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoa tap cong snippets") or ("dung cac code snippets"))) or ("locating bug code snippets"))*.