Perhaps you should try some spelling variations:
"quang hoang da snippets" » "quan hoang da snippets", "tuan hoang da snippets", "xuan hoang da snippets", "quang hoang dai snippets", "quang hoang dat snippets", "quang hoang de 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: (((("quang hoang da snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quang hoang da snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quang hoang da snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quang hoang da snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.