Perhaps you should try some spelling variations:
khong luong » khong xuong, thuong luong, phuong luong
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
tranh cua » doanh cua, manh cua
cua khong » hua khong, cua phuong, cua thuong
luong va » dung va
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap

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 sang - canh tranh cua khong luong va ((phan cau) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - canh tranh cua khong luong va ((phan cau) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - canh tranh cua khong luong va ((phan cau) or (phan cac))*.