Perhaps you should try some spelling variations:
"dong trinh hang slippers" » "cong trinh hang slippers", "dong tinh hang slippers", "dong tranh hang slippers", "dong trinh han slippers", "dong trinh hanh slippers", "dong trinh hang slippery", "dong trinh hang grippers"
"using ibm code snippets" » "using rbf code snippets", "using lbm code snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

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