Perhaps you should try some spelling variations:
"data using data snippets" » "data using java snippets", "data using sat snippets", "data missing data snippets"
"dung doanh cac snippets" » "dung dan cac snippets", "dung dong cac snippets", "dung doanh bac snippets", "dung doanh cao snippets", "dung doanh chau 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: (((("data using data snippets") or ("dung doanh cac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("data using data snippets") OR ("dung doanh cac snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( data using data snippets ) or ( dung doanh cac snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data using data snippets") or ("dung doanh cac snippets"))) or ("locating bug code snippets"))*.