Perhaps you should try some spelling variations:
"dang using java snippets" » "dang sinh java snippets", "data using java snippets", "dang ung java snippets", "dang using data snippets"
"huong cua cong snippets" » "dung cua cong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("huong cua cong snippets") or ("dang using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huong cua cong snippets") OR ("dang using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huong cua cong snippets ) or ( dang using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huong cua cong snippets") or ("dang using java snippets"))) or ("locating bug code snippets"))*.