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 len trac snippets" » "dung nen trac snippets", "dung le trac snippets", "dung luan trac snippets", "dung len tac snippets", "dung dien trac snippets", "dung len troi snippets"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using ibm code slippers") OR ("dung len trac snippets"))) OR ("locating bugs code snippets"))~.
• Removing quotes may allow a broader search: (((( using ibm code slippers ) or ( dung len trac snippets ))) or ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using ibm code slippers") or ("dung len trac snippets"))) or ("locating bugs code snippets"))*.