Perhaps you should try some spelling variations:
"locating bugs code slippers" » "locating bugs code snippets", "locating bug code slippers"
"dung java java snippets" » "dung va java snippets"
"than doc dat snippets" » "than duoc dat snippets", "than hoc dat snippets", "than doc dao snippets", "thanh doc dat snippets", "phan doc dat snippets", "tran doc dat 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: (((("than doc dat snippets") or ("dung java java snippets"))) or ("locating bugs code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than doc dat snippets") OR ("dung java java snippets"))) OR ("locating bugs code slippers")).
• Removing quotes may allow a broader search: (((( than doc dat snippets ) or ( dung java java snippets ))) or ( locating bugs code slippers )).
• Adding a wildcard symbol may retrieve word variants: (((("than doc dat snippets") or ("dung java java snippets"))) or ("locating bugs code slippers"))*.