Perhaps you should try some spelling variations:
"duong java java slippers" » "duong va java slippers", "duong java java slippery", "duong java java grippers"
"trong cfd code snippets" » "trong cac code snippets", "trong ca code snippets", "trong cay code snippets", "trong cfd core snippets"
"locating bug code snippets" » "locating bug core 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: (((("duong java java slippers") or ("trong cfd code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong java java slippers") OR ("trong cfd code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong java java slippers ) or ( trong cfd code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong java java slippers") or ("trong cfd code snippets"))) or ("locating bug code snippets"))*.