Perhaps you should try some spelling variations:
"hanh java java slippers" » "hanh va java slippers", "hanh java java slippery", "hanh java java grippers"
"dung con tao snippets" » "dung cong tao snippets", "dung von tao snippets", "dung co tao snippets", "dung chon tao snippets", "dung con tap snippets", "dung cong tac snippets"
"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: (((("hanh java java slippers") or ("dung con tao snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh java java slippers") OR ("dung con tao snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh java java slippers ) or ( dung con tao snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh java java slippers") or ("dung con tao snippets"))) or ("locating bug code snippets"))*.