Perhaps you should try some spelling variations:
nghiep nganh » nghiep thanh, nghiep ninh, nghiep anh
thanh trung » thanh tung
hieu manh » chieu xanh, hieu nganh, dieu hanh
hua khong » hoa khong, cua khong, hoac khong
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
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 ((nghiep nganh) or (hieu manh)) - thanh trung ((suat thong) or (hua khong)) cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((nghiep nganh) OR (hieu manh)) - thanh trung ((suat thong) OR (hua khong)) cong dan phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((nghiep nganh) or (hieu manh)) - thanh trung ((suat thong) or (hua khong)) cong dan phan cau*.