Perhaps you should try some spelling variations:
"data using data snippets" » "data using java snippets", "data using sat snippets", "data missing data snippets"
"cong co cac snippets" » "dong co cac snippets", "cong cu cac snippets", "cong so cac snippets", "cong cho cac snippets", "cong ca cac snippets", "cong co cau 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 ("cong co 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 ("cong co cac snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( data using data snippets ) or ( cong co cac snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data using data snippets") or ("cong co cac snippets"))) or ("locating bug code snippets"))*.