Perhaps you should try some spelling variations:
"dong duoc thinh slippers" » "dong quoc thinh slippers", "dong duc thinh slippers", "dong duoc thanh slippers", "dong duong thinh slippers", "trong duoc thinh slippers", "dong duoc thinh slippery", "dong duoc thinh grippers"
"dung java java snippets" » "dung 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 duoc thinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong duoc thinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong duoc thinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong duoc thinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.