Perhaps you should try some spelling variations:
"dao trong java snippets" » "dao trinh java snippets", "tao trong java snippets", "dat trong java snippets", "cay trong java snippets"
"using java java slippers" » "using data java slippers", "using java java slippery", "using java java 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: (((("dao trong java snippets") or ("using java java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao trong java snippets") OR ("using java java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao trong java snippets ) or ( using java java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao trong java snippets") or ("using java java slippers"))) or ("locating bug code snippets"))*.