Perhaps you should try some spelling variations:
"phung hoc phi slippers" » "phung ho phi slippers", "chung hoc phi slippers", "khung hoc phi slippers", "phung hoc pho slippers", "phung hoc chi slippers", "phung hoc khi slippers", "phung hoc phi slippery", "phung hoc phi 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: (((("phung hoc phi slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phung hoc phi slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phung hoc phi slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phung hoc phi slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.