Perhaps you should try some spelling variations:
"dinh tri trinh slippers" » "dinh tra trinh slippers", "dinh thi trinh slippers", "dinh tri tinh slippers", "chinh tri trinh slippers", "dinh tri trinh slippery", "dinh tri 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: (((("dinh tri 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: (((("dinh tri trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dinh tri trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh tri trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.