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