Perhaps you should try some spelling variations:
chua xang » chua nang, chuc nang, chua dong
trinh han » trinh quan
cau duong » hai duong, con duong, van duong
chu bang » thu bang, chuc nang, chu quang
cong bai » cuong bai, cong hai, cung bai
cu dung » su dung, duc dung
tap tap » tap tai, lap tap, tap lap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chua xang) or (chu bang)) - trinh han ((cu dung) OR (cau duong)) cong bai tap tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chua xang) OR (chu bang)) - trinh han ((cu dung) OR (cau duong)) cong bai tap tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chua xang) or (chu bang)) - trinh han ((cu dung) OR (cau duong)) cong bai tap tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chua xang) or (chu bang)) - trinh han ((cu dung) OR (cau duong)) cong bai tap tap*.