Perhaps you should try some spelling variations:
"thanh van trinh slippers" » "thanh san trinh slippers", "thanh toan trinh slippers", "thanh phan trinh slippers", "thanh van thinh slippers", "thanh van tinh slippers", "thanh dan trinh slippers", "thanh van trinh slippery", "thanh van 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: (((("thanh van 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: (((("thanh van trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thanh van trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thanh van trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.