Perhaps you should try some spelling variations:
"hoang danh ca snippets" » "hoang anh ca snippets", "hoang xanh ca snippets", "hoang dinh ca snippets", "hoang dan ca snippets", "hoang doanh cua snippets", "hoang danh cho 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 danh ca 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 danh ca snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoang danh ca snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoang danh ca snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.