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