Perhaps you should try some spelling variations:
"using java core snippets" » "using data core snippets"
"nang truc noi snippets" » "nang thuc noi snippets", "nang luc noi snippets", "nang tu noi snippets", "nang truc loi snippets", "nang truc nha snippets", "nang tri noi 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 java core snippets") or ("nang truc noi snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java core snippets") OR ("nang truc noi snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java core snippets ) or ( nang truc noi snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java core snippets") or ("nang truc noi snippets"))) or ("locating bug code snippets"))*.