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