Perhaps you should try some spelling variations:
khong huong » khong xuong, thong huong, thong thuong
thanh tuong » thanh thuong, thanh tung, thanh huong
hieu lang » chieu sang, hieu quang, nhieu tang
tuong cua » truong cua, huong cua, thong cua
cua khong » hua khong, cua phuong, cua thuong
huong ban » huong dan, huong ben, huong lan
toan cau » toan cao, toan ban, toan tap
phan cau » phan dau, phan cac, phan tu
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - thanh tuong cua khong huong ban ((toan cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh tuong cua khong huong ban ((toan cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh tuong cua khong huong ban ((toan cau) or (phan cau))*.