Perhaps you should try some spelling variations:
"dong chuan cac snippets" » "dong chan cac snippets", "dong thuan cac snippets", "dong chuyen cac snippets", "dong chuan chat snippets", "dong chuan chau snippets", "dong chuan chuc 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: (((("dong chuan cac snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong chuan cac snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong chuan cac snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong chuan cac snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.