Perhaps you should try some spelling variations:
"hoang tran han snippets" » "hoang tuan han snippets", "hoang thanh han snippets", "hoang van han snippets", "hoang tran hanh snippets", "hoang tran hoan snippets", "hoang tran nhan snippets", "hoang tran han slippers"
"using ibm code snippets" » "using rbf code snippets", "using lbm code snippets", "using ibm code slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code 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 snippets") or ("hoang tran han snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using ibm code snippets") OR ("hoang tran han snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( using ibm code snippets ) or ( hoang tran han snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("using ibm code snippets") or ("hoang tran han snippets"))) or ("locating bug code snippets"))*.