Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
tuan thong » toan thong, tran thong, tuan phong
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, hien hanh
cong dan » cong san, cong tan, huong dan
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

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) OR (dieu hanh)) - thanh trung tuan thong cong dan ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (dieu hanh)) - thanh trung tuan thong cong dan ((than cau) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) OR (dieu hanh)) - thanh trung tuan thong cong dan ((than cau) or (phan cau))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) OR (dieu hanh)) - thanh trung tuan thong cong dan ((than cau) or (phan cau))*.