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