Perhaps you should try some spelling variations:
"hoang hoc dat snippets" » "hoang hoa dat snippets", "hoang hon dat snippets", "hoang phuoc dat snippets", "hoang hoc dan snippets", "hoang hoc dai snippets", "hoang hoc phat snippets"
"dung java java slippers" » "dung va java slippers", "dung java java slippery", "dung java java grippers"
"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: (((("hoang hoc dat snippets") or ("dung java java slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoang hoc dat snippets") OR ("dung java java slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoang hoc dat snippets ) or ( dung java java slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoang hoc dat snippets") or ("dung java java slippers"))) or ("locating bug code snippets"))*.