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