Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using data code snippets" » "using java code snippets", "using sat code snippets", "missing data code snippets", "using rate code snippets"
"dang hung don snippets" » "dang quang don snippets", "manh hung don snippets", "dang cong don snippets", "dang nhung don snippets", "dang hung dan snippets", "dang huong dong 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: (((("using data code snippets") or ("dang hung don snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using data code snippets") OR ("dang hung don snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using data code snippets ) or ( dang hung don snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using data code snippets") or ("dang hung don snippets"))) or ("locating bugs code snippets"))*.