Perhaps you should try some spelling variations:
"than rua trinh slippers" » "than qua trinh slippers", "than xuan trinh slippers", "than quy trinh slippers", "than cua trinh slippers", "than tuan trinh slippers", "thang cua trinh slippers", "than rua trinh slippery", "than rua 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: (((("than rua 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: (((("than rua trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than rua trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than rua trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.