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