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