Perhaps you should try some spelling variations:
"duong anh trinh snippets" » "duong manh trinh snippets", "duong xanh trinh snippets", "duong vanh trinh snippets", "duong hanh trinh snippets", "duong anh tinh snippets", "duong thanh trinh snippets", "duong anh trinh slippers"
"hang java java snippets" » "hang va java snippets", "hang java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("duong anh trinh snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong anh trinh snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong anh trinh snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong anh trinh snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.