Perhaps you should try some spelling variations:
"hoa trinh java snippets" » "hoa tinh java snippets", "hoa thinh java snippets", "hoc trinh java snippets", "hoa trinh java slippers"
"dong cung code snippets" » "dong chung code snippets", "dong hung code snippets", "dong cong code snippets", "dong cung code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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: (((("hoa trinh java snippets") or ("dong cung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoa trinh java snippets") OR ("dong cung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoa trinh java snippets ) or ( dong cung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoa trinh java snippets") or ("dong cung code snippets"))) or ("locating bug code snippets"))*.