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