Perhaps you should try some spelling variations:
"dao chieu cao snippets" » "dao hieu cao snippets", "da chieu cao snippets", "cao hieu cao snippets", "dao hieu cac snippets", "dao hieu ca snippets", "dao chieu day snippets"
"dung va java snippets" » "dung java java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dao chieu cao snippets") or ("dung va java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao chieu cao snippets") OR ("dung va java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao chieu cao snippets ) or ( dung va java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao chieu cao snippets") or ("dung va java snippets"))) or ("locating bug code snippets"))*.