Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
truong ca » truong cao, truong va, trong ca
hoc hieu » hoc thieu, hoc hien, doc hieu
van than » van thanh, van thang, van tuan
dan chan » dan gian, dan ca, van chat

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - thanh ((trung cua) OR (truong ca)) nhung cong ((van than) OR (dan chan)) cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - thanh ((trung cua) or (truong ca)) nhung cong ((van than) or (dan chan)) cau*.