Perhaps you should try some spelling variations:
chuong chua » huong cua, chung chuan, cong chua
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
chung cua » chung cu, dung cua, huong cua
hoc hieu » hoc thieu, hoc hien, doc hieu
cong dan » cong san, cong tan, huong dan
dan can » dan chan, dan canh, dan ca
can cau » van cau, ban cau, ca cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - thanh ((chuong chua) or (chung cua)) thong cong dan can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - thanh ((chuong chua) OR (chung cua)) thong cong dan can cau*.