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