Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"va tuong cham snippets" » "va trong cham snippets", "va tuong tham snippets", "va duong cham snippets", "va thuong cham snippets", "va thong cham snippets", "xa truong cham snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 java snippets") or ("va tuong cham snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java java snippets") OR ("va tuong cham snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java java snippets ) or ( va tuong cham snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") or ("va tuong cham snippets"))) or ("locating bug code snippets"))*.