Perhaps you should try some spelling variations:
"hang java java snippets" » "hang va java snippets"
"dung ha chet snippets" » "dung va chet snippets", "dung he chet snippets", "dung khoa chet snippets", "dung la chet snippets", "dung chai chet snippets", "dung hoa chat 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: (((("dung ha chet snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung ha chet snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung ha chet snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung ha chet snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.