Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"using ibm code slippers" » "using rbf code slippers", "using lbm code slippers"
"dung nam code snippets" » "dong nam code snippets", "dung lam code snippets", "sung nam code snippets", "dung nam co snippets", "dung lbm code snippets", "dung nam de 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: (((("using ibm code slippers") or ("dung nam code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using ibm code slippers") OR ("dung nam code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( using ibm code slippers ) or ( dung nam code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using ibm code slippers") or ("dung nam code snippets"))) or ("locating bugs code snippets"))*.