Perhaps you should try some spelling variations:
"phau hoc trinh slippers" » "phau doc trinh slippers", "phau hoc tinh slippers", "phau hoc sinh slippers", "phap hoc trinh slippers", "thai hoc trinh slippers", "nha hoc trinh slippers", "phau hoc trinh slippery", "phau 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: (((("phau 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: (((("phau hoc trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phau hoc trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phau hoc trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.