Perhaps you should try some spelling variations:
"dung cho code snippets" » "dung cho cong snippets", "dung cfd code snippets", "dung cho con snippets"
"cong a data slippers" » "cong ha data slippers", "cong va data slippers", "cong ma data slippers", "cong _ data slippers", "cong a data slippery", "cong a data grippers"
"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: (((("dung cho code snippets") or ("cong a data slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung cho code snippets") OR ("cong a data slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung cho code snippets ) or ( cong a data slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung cho code snippets") or ("cong a data slippers"))) or ("locating bug code snippets"))*.