Perhaps you should try some spelling variations:
"anh java java snippets" » "anh va java snippets"
"dung dat sach slippers" » "dung va sach slippers", "dung tai sach slippers", "dung mat sach slippers", "dung dat khach slippers", "dung nam sach slippers", "dung dat sach slippery", "dung dat sach grippers"
"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: (((("anh java java snippets") or ("dung dat sach slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh java java snippets") OR ("dung dat sach slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh java java snippets ) or ( dung dat sach slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh java java snippets") or ("dung dat sach slippers"))) or ("locating bug code snippets"))*.