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