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