Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
canh manh » lanh manh, canh tranh, cach mang
dong cong » duong cong, dung cong, dang cong
cong suat » nang suat, cong san, cong cua
suat phan » sat phan, xuat phan, thuat phan
manh cua » doanh cua, ban cua
cua dong » chua dong, cua cong, cua dang
phan cau » phan dau, phan cac, phan tu
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (doi chi)) xanh - canh manh cua dong cong suat phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (doi chi)) xanh - canh manh cua dong cong suat phan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (doi chi)) xanh - canh manh cua dong cong suat phan cau*.