Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"dung cac san slippers" » "luong cac san slippers", "dung cho san slippers", "dung tai san slippers", "dung cac dan slippers", "dung cac van slippers", "dung cac ban slippers", "dung cac san slippery", "dung cac san 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 cac san 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 cac san slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cac san slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cac san slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.