Perhaps you should try some spelling variations:
"hoang hai con snippets" » "hang hai con snippets", "hoang nham con snippets", "hoang thi con snippets", "hoang phai con snippets", "hoang bai con snippets", "hoang hai son snippets"
"hang java java snippets" » "hang 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 hai con snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoang hai con snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoang hai con snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoang hai con snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.