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