Perhaps you should try some spelling variations:
"dong mon trong slippers" » "dong ion trong slippers", "dong hon trong slippers", "dong mo trong slippers", "dong von trong slippers", "dong son trong slippers", "dong co trong slippers", "dong mon trong slippery", "dong mon trong grippers"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("dong mon trong slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong mon trong slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong mon trong slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong mon trong slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.