Perhaps you should try some spelling variations:
"dan trinh java slippers" » "dan tinh java slippers", "van trinh java slippers", "hanh trinh java slippers", "dan trinh java slippery", "dan trinh java grippers"
"dong va code snippets" » "dung va code snippets", "dong ha code snippets", "luong va code snippets", "dong va core snippets"
"locating bug code snippets" » "locating bug core snippets", "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: (((("dan trinh java slippers") or ("dong va code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan trinh java slippers") OR ("dong va code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan trinh java slippers ) or ( dong va code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan trinh java slippers") or ("dong va code snippets"))) or ("locating bug code snippets"))*.