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