Perhaps you should try some spelling variations:
"minh hieu trinh slippers" » "minh tieu trinh slippers", "minh lieu tinh slippers", "minh tien trinh slippers", "minh hien trinh slippers", "minh kieu trinh slippers", "tin hieu trinh slippers", "minh hieu trinh slippery", "minh hieu 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: (((("dung java java snippets") or ("minh hieu trinh slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("minh hieu trinh slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( minh hieu trinh slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("minh hieu trinh slippers"))) or ("locating bug code snippets"))*.