Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"using ibm code snippets" » "using rbf code snippets", "using lbm code snippets", "using ibm code slippers"
"dung tan van snippets" » "dung toan van snippets", "duong tan van snippets", "dung tai van snippets", "dung tran van snippets", "dung tang van snippets", "dung luan van snippets", "dung tan van slippers"

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