Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, nghiep nganh
hieu manh » chieu xanh, dieu hanh, hien hanh
tuong cua » truong cua, huong cua, thong cua
phan cong » thanh cong
tung cua » trung cua, dung cua, tang cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((hieu nganh) OR (hieu manh)) - thanh ((tung cua) or (tuong cua)) phan cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((hieu nganh) OR (hieu manh)) - thanh ((tung cua) OR (tuong cua)) phan cong dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((hieu nganh) OR (hieu manh)) - thanh ((tung cua) or (tuong cua)) phan cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: toc ((hieu nganh) OR (hieu manh)) - thanh ((tung cua) or (tuong cua)) phan cong dan toan cau*.