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