Perhaps you should try some spelling variations:
"luong tap trinh slippers" » "luong tai trinh slippers", "cuong tap trinh slippers", "luong tham trinh slippers", "luong lap trinh slippers", "luong tap tinh slippers", "luong tao trinh slippers", "luong tap trinh slippery", "luong tap 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: (((("luong tap 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: (((("luong tap trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong tap trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong tap trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.