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