Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dong lieu tinh slippers" » "dong hieu tinh slippers", "dong dieu tinh slippers", "dong tieu tinh slippers", "dong trieu tinh slippers", "dong diep tinh slippers", "dong bien tinh slippers", "dong lieu tinh slippery", "dong lieu tinh 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 ("dong lieu tinh slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("dong lieu tinh slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( dong lieu tinh slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("dong lieu tinh slippers"))) or ("locating bug code snippets"))*.