Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"hoc cach dua snippets" » "hoc cac dua snippets", "hoc sach dua snippets", "cuoc cach dua snippets", "hoc cach cua snippets", "hoc cach dung snippets", "hoc cac du snippets"
"locating bug core snippets" » "locating bug code snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("hoc cach dua snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( hoc cach dua snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("hoc cach dua snippets"))) or ("locating bug core snippets"))*.