Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"hanh mot trinh slippers" » "hanh mot tinh slippers", "hanh mot thanh slippers", "hanh co trinh slippers", "hanh tot trinh slippers", "thanh moi trinh slippers", "hanh noi trinh slippers", "hanh mot trinh slippery", "hanh mot trinh 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 ("hanh mot trinh slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("hanh mot trinh slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( hanh mot trinh slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("hanh mot trinh slippers"))) or ("locating bug code snippets"))*.