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