Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using java code snippets" » "using data code snippets"
"van ngoc hoan snippets" » "van ngoc hoang snippets", "van ngoc hoa snippets", "van ngoc toan snippets", "tran ngoc hoan snippets", "van hoc hoan snippets", "van nghe hoan 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 ("van ngoc hoan snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("van ngoc hoan snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( van ngoc hoan snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("van ngoc hoan snippets"))) or ("locating bugs code snippets"))*.