Perhaps you should try some spelling variations:
"using data core snippets" » "using java core snippets", "using sat core snippets", "missing data core snippets"
"tran sach han snippets" » "tran mach han snippets", "ngan sach han snippets", "tran manh han snippets", "tran sach tham snippets", "tran sach danh snippets", "tran sach nang snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

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 core snippets") or ("tran sach han snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using data core snippets") OR ("tran sach han snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( using data core snippets ) or ( tran sach han snippets ))) or ( locating bug code snippets ))*.