Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"danh hoc hieu snippets" » "dan hoc hieu snippets", "danh hoa hieu snippets", "anh hoc hieu snippets", "danh hoc thieu snippets", "danh hoc hien snippets", "danh doc hieu snippets", "danh hoc hieu slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "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 code snippets") or ("danh hoc hieu snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("danh hoc hieu snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( danh hoc hieu snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("danh hoc hieu snippets"))) or ("locating bug code snippets"))*.