Perhaps you should try some spelling variations:
"hoang trong cau snippets" » "khoang trong cau snippets", "hoang vuong cau snippets", "cong trong cau snippets", "hoang trong cac snippets", "hoang trong ca snippets", "hoang thong cau snippets"
"dung java java snippets" » "dung va java 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: (((("hoang trong cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoang trong cau snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoang trong cau snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoang trong cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.