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"
"cong dan chi snippets" » "cong san chi snippets", "cong tan chi snippets", "huong dan chi snippets", "cong danh chi snippets", "cong dan thi snippets", "cong van chi 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 ("cong dan chi snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using data code snippets") OR ("cong dan chi snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using data code snippets ) or ( cong dan chi snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using data code snippets") or ("cong dan chi snippets"))) or ("locating bugs code snippets"))*.