Perhaps you should try some spelling variations:
"anh quoc trinh slippers" » "anh quoc thinh slippers", "anh qua trinh slippers", "anh quy trinh slippers", "dang quoc trinh slippers", "han quoc trinh slippers", "anh duc trinh slippers", "anh quoc trinh slippery", "anh quoc 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: (((("anh quoc 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: (((("anh quoc trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh quoc trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh quoc trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.