Perhaps you should try some spelling variations:
"tao trinh java snippets" » "tao tinh java snippets", "tho trinh java snippets", "giao trinh java snippets", "tao trinh java slippers"
"dong cua code snippets" » "dung cua code snippets", "cong cua code snippets", "huong cua code snippets", "dong cua cong snippets", "dong cua co snippets", "dong cfd code snippets", "dong cua 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: (((("tao trinh java snippets") or ("dong cua code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tao trinh java snippets") OR ("dong cua code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tao trinh java snippets ) or ( dong cua code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao trinh java snippets") or ("dong cua code snippets"))) or ("locating bug code snippets"))*.