Perhaps you should try some spelling variations:
"luong java java slippers" » "luong va java slippers", "luong java java slippery", "luong java java grippers"
"dung quan data snippets" » "dung quang data snippets", "dung luan data snippets", "luong quan data snippets", "dung quan sat snippets", "dung quan dac 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: (((("dung quan data snippets") or ("luong java java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung quan data snippets") OR ("luong java java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung quan data snippets ) or ( luong java java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung quan data snippets") or ("luong java java slippers"))) or ("locating bug code snippets"))*.