Perhaps you should try some spelling variations:
"phap hoc trinh slippers" » "phap doc trinh slippers", "phap hoc tinh slippers", "phap hoc sinh slippers", "phap hoan trinh slippers", "phap mo trinh slippers", "phap han trinh slippers", "phap hoc trinh slippery", "phap hoc trinh 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: (((("phap hoc trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap hoc trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap hoc trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap hoc trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.