Perhaps you should try some spelling variations:
"trinh anh dat slippers" » "trinh hanh dat slippers", "trinh thanh dat slippers", "trinh kinh dat slippers", "trinh lanh dao slippers", "trinh dinh dat slippers", "trinh anh dat slippery", "trinh anh dat grippers"
"dung ung code snippets" » "dung trung code snippets", "dung quang code snippets", "dung chung code snippets", "dung ung co snippets"
"locating bug code 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: (((("trinh anh dat slippers") or ("dung ung code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh anh dat slippers") OR ("dung ung code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh anh dat slippers ) or ( dung ung code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh anh dat slippers") or ("dung ung code snippets"))) or ("locating bug code snippets"))*.