Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"using rbf code snippets" » "using ibm code snippets", "using raw code snippets", "using lbm code snippets", "using rbf code slippers"
"dung len trong snippets" » "dung lenh trong snippets", "dung le trong snippets", "dung ben trong snippets", "dung nen trong snippets", "dung luan trong snippets", "dung len trong slippers"

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

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