Perhaps you should try some spelling variations:
"dung dat cham snippets" » "dung dat code snippets", "dung va cham snippets", "dung tai cham snippets", "dung dat cau snippets", "dung dat lam snippets"
"locating bug core snippets" » "locating bug code snippets"
"dong trinh java snippets" » "cong trinh java snippets", "dong tinh java snippets", "dong tranh java 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 trinh java snippets") or ("dung dat cham snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong trinh java snippets") OR ("dung dat cham snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong trinh java snippets ) or ( dung dat cham snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong trinh java snippets") or ("dung dat cham snippets"))) or ("locating bug core snippets"))*.